Commit Graph

436 Commits

Author SHA1 Message Date
Rusty Russell
03be40ea8b lightningd: don't reset balance when we reconnect!
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-07-12 10:21:16 +09:30
Rusty Russell
8b71ea924a lightningd: don't crash when simply using closingd just for retransmission.
test_closing_negotiation_reconnect (__main__.LightningDTests) ... peer state CLOSINGD_COMPLETE should be CLOSINGD_SIGEXCHANGE

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-07-12 10:21:16 +09:30
Rusty Russell
a87d50acc9 Makefile: clean daemons on clean.
Reported-by: Christian Decker
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-07-12 10:21:16 +09:30
Rusty Russell
7d3e074863 Misc feedback minor fixes.
Reported-by: Christian Decker
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-07-12 10:21:16 +09:30
Rusty Russell
87232ec25c lightningd: new peer state CLOSINGD_COMPLETE.
This is a transitional state, while we're waiting to see the
closing tx onchain (which is To Be Implemented).

The simplest way to do re-transmission is to re-use closingd, and just
disallow any updates.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-07-12 10:21:16 +09:30
Rusty Russell
c1f21b9fce lightningd/peer_control.c: rename peer->balance.
I made the mistake of thinking it was a [NUM_SIDES] array, but
it's actually our balance, and it's in millisatoshi.  Rename
for clarity.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-07-12 10:21:16 +09:30
Rusty Russell
4223a91842 lightningd: update daemon list.
This is used to check that versions are correct on startup.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-07-12 10:21:16 +09:30
Rusty Russell
0c5e238a48 lightningd: handle reconnect during shutdown and closing.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-07-12 10:21:16 +09:30
Rusty Russell
0c07856ae4 lightningd/peer_control.c: remove unnecessary reconnected field.
It can be on the stack.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-07-12 10:21:16 +09:30
Rusty Russell
a827d2b2bb lightningd: add in support for closingd.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-07-12 10:21:16 +09:30
Rusty Russell
e5a8a7502c lightningd/closing: subdaemon for closing negotiation.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-07-12 10:21:16 +09:30
Rusty Russell
6fa90c926a channeld: exit after shutdown when no more HTLCs.
Ready for the introduction of closingd.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-07-12 10:21:16 +09:30
Rusty Russell
80886cda8a daemon_conn: fix daemon_conn_sync_flush.
We need to set fd to blocking before trying to sync write.  Use
io_fd_block() elsewhere, too.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-07-12 10:21:16 +09:30
Rusty Russell
94a33a7d15 channeld: use an enum side not a bool for funder/
This predated our handling of enums.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-07-12 10:21:16 +09:30
Rusty Russell
7884343c15 tools/generate-wire.py: enums are assignable.
Simplfies their marshalling/unmarshalling.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-07-12 10:21:16 +09:30
Rusty Russell
9ec804341c channeld: fix intermittant failure on reading init msg from master.
As tracked down by Christian; by setting up the master conn first,
we make the master fd async.  This means that the synchronous read
(in init_channel) can fail with -EAGAIN, and indeed, Christian
saw this when not running under valgrind.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-07-03 19:43:34 +09:30
Rusty Russell
249085ac10 channeld: reorder functions more logically.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-07-03 19:43:34 +09:30
Rusty Russell
c05f63a4db peer_control: fix double-state transition on reconnect.
We actually don't need to transition if we're reconnecting, and logic
to go to CHANNELD_NORMAL was wrong: we checked that we'd seen funding tx
locked, but not that we'd received a msg from the remote peer.

We need to fix the tests now we no longer double-transition, too.

Fixes: #188
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-07-03 19:43:34 +09:30
Christian Decker
f9a2f73072 Addressing feedback from PR #187 2017-06-30 13:42:00 +02:00
Christian Decker
70f4484ba8 channeld: Pass through the agreed feerate_per_kw to channeld
We were erroneously using the fee_base which refers to the fees we
require for forwarding transactions instead of the on-chain fees.
2017-06-30 19:55:17 +09:30
Christian Decker
5c80963577 bug: channel_update parameters slipped by one 2017-06-30 19:55:17 +09:30
Christian Decker
5e1dcea5b8 opening: Passing feerate_per_kw through to master 2017-06-30 19:55:17 +09:30
Christian Decker
02aba77698 channel: Passing channel_flags through to channeld 2017-06-30 19:55:17 +09:30
Rusty Russell
ac1172c7b0 lightningd: check scriptpubkey in shutdown.
Important: a non-standard one can make the closing tx not propagate.

Drive-by cut&paste message fix, too.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-06-29 00:08:21 +02:00
Rusty Russell
4881129f54 peer_fail_permanent: handle take() arg.
We assume this in at least one caller.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-06-29 00:08:21 +02:00
Rusty Russell
ee9ebbc184 channeld: fix funding_locked retransmission using latest revision of BOLT2.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-06-29 00:08:21 +02:00
Rusty Russell
42c9cb58c7 channeld: rename commit_index to next_index.
This is what it actually is, and makes it clearer when we refer to the
spec.  It's the commitment we're currently updating, which is the next
commitment.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-06-29 00:08:21 +02:00
Rusty Russell
d411b07ba2 channeld: fix make_revocation_msg() to take index of revoke.
It currently takes index + 1 (ie. current commit), which is confusing
in this context.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-06-29 00:08:21 +02:00
Rusty Russell
1679f2da06 channeld: update to send next commitment number on connection reestablish.
As per latest BOLT revision.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-06-29 00:08:21 +02:00
Rusty Russell
05b9e0d538 channeld: do connection reestablishment synchronously.
We currently have the problem that the master can send new HTLCs before
we've processed the incoming reestablish message.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-06-29 00:08:21 +02:00
Rusty Russell
456fa39380 sync_crypto_write: support take(msg)
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-06-29 00:08:21 +02:00
Rusty Russell
de5bf56ffa opening: update to new open_channel with channel_flags.
While we're there, make the announcement conditional on it.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-06-29 00:08:21 +02:00
Rusty Russell
d492f3872c wire/peer_wire: rename gossip_msg / unknown_msg / unknown_msg_discardable
The next patch includes wire/peer_wire.h and causes a compile error
as lightningd/gossip_control.c defined its own gossip_msg function.

New names are clearer.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-06-29 00:08:21 +02:00
Rusty Russell
fc4e2d8b48 lightningd: fix typo.
If we're going to die, at least we can do so with dignity.

Reported-by: Christian Decker
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-06-27 10:25:53 +09:30
Rusty Russell
99289bece7 lightningd/peer_control.c: fix memleak.
Reported-by: Christian Decker
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-06-27 10:25:53 +09:30
Rusty Russell
ac703ff9dc lgihtningd: remove extraneous whitespace.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-06-27 10:25:53 +09:30
Rusty Russell
e2c5104aab lightningd: immediately fail HTLCs coming in from shutting down channels.
This can happen even without a protocol violation, if the incoming
update_add_htlc crosses over our outgoing shutdown.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-06-27 10:25:53 +09:30
Rusty Russell
866ac79850 channeld: shutdown support.
We keep the scriptpubkey to send until after a commitment_signed (or,
in the corner case, if there's no pending commitment).  When we
receive a shutdown from the peer, we pass it up to the master.

It's up to the master not to add any more HTLCs, which works because
we move from CHANNELD_NORMAL to CHANNELD_SHUTTING_DOWN.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-06-27 10:25:53 +09:30
Rusty Russell
ee00c2c508 lightningd: remove peer->gossip_client_fd
We don't need to keep this around any more: by handing it to
subdaemons we ensure we'll close it if the peer disconnects, and we
also add code to get a new one on reconnection.

Because getting a gossip_fd is async, we re-check the peer state after
it gets back.  This is kind of annoying: perhaps if we were to hand
the reconnected peer through gossipd (with a flag to immediately
return it) we could get the gossip fd that way and unify the paths?

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-06-27 10:25:53 +09:30
Rusty Russell
4185153d81 gossipd: interface to get a client gossip_fd for a reconnect.
At the moment, master simply keeps the gossip fd open when peer
disconnects.  That's inefficient, and wrong anyway (it may want a
complete new sync, or may not, but we'll currently send all the
messages including stale ones).

This interface will be required for restart anyway.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-06-27 10:25:53 +09:30
Rusty Russell
ea52b0a8ff openingd: pass back gossip fd on completion.
For the moment, master still keeps a dup of gossip_fd, but that's the next
patch.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-06-27 10:25:53 +09:30
Rusty Russell
2ff50107ac lightningd/hsm_control: use a simple fd for HSM.
Now we're always sync, just use an fd.  Put the hsm_sync_read() helper
here, too, and do HSM init sync which makes things much simpler.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-06-27 10:25:53 +09:30
Rusty Russell
6e59f85666 subd: expose raw API for getting a single fd to a subdaemon.
We're going to use this for the HSM.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-06-27 10:25:53 +09:30
Rusty Russell
4ef3e9e3fb lightningd/peer_control: get announcement signature from HSM synchronously.
We temporarily play games with the hsm fd; those will go away once
we're done.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-06-27 10:25:53 +09:30
Rusty Russell
d1d84a81d2 lightningd/new_connection: get handshake fd from HSM synchronously.
We temporarily play games with the hsm fd; those will go away once
we're done.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-06-27 10:25:53 +09:30
Rusty Russell
7213312f57 lightningd: remove fd from struct peer.
With no async calls left, we can just use a stack variable for the fd.

And we're now *always* in the hands of some daemon, unless we're
disconnected, so owner is only NULL in that case.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-06-27 10:25:53 +09:30
Rusty Russell
f2d4309add lightningd/subd: explicit failure reply support.
We had a terrible hack in gossip when a peer didn't exist.  Formalize
a pattern when code+200 is a failure (with no fds passed), and use it
here.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-06-27 10:25:53 +09:30
Rusty Russell
31ff5a49f4 lightningd/peer_control: remove cs from struct peer.
Now we're not async, we don't need to pack it into struct peer.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-06-27 10:25:53 +09:30
Rusty Russell
232a182b25 lightningd: get fd from HSM synchronously.
This means there's no GETTING_HSMFD state at all any more.  We
temporarily play games with the hsm fd; those will go away once we're
done.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-06-27 10:25:53 +09:30
Rusty Russell
77620ea06f lightningd: get funding signature from HSM synchronously.
This means there's no GETTING_SIG_FROM_HSM state at all any more.  We
temporarily play games with the hsm fd; those will go away once we're
done.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-06-27 10:25:53 +09:30