Commit Graph

265 Commits

Author SHA1 Message Date
Christian Decker
1d3737055a sphinx: Integrate sphinx OR with lightningd
Now replaces the old cleartext onion routing with the sphinx
implementation.
2016-10-16 16:40:50 +02:00
Rusty Russell
e5994ad8c1 json_connect: don't return until we're in state normal.
This gives much better errors, and allows us to return the peer id.

Closes: #37
Reported-by: Glenn Willen
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-10-07 14:01:18 +10:30
Rusty Russell
a1f1f1eda8 daemon: fix feechange logic.
Firstly, we need to update the staging fee amount when we queue a change.
Secondly we need to remove completed fee updates, otherwise we hit a
database constraint that peer & state are unique.

Reported-by: Christian Decker
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-10-07 14:00:17 +10:30
Rusty Russell
e2090f015d peer: don't spin when we want to commit and are not connected.
Instead, stop timer loop, and restart when we connect again.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-10-07 14:00:17 +10:30
Rusty Russell
25b3dc0038 channel: fix max feelevel calculation.
We were out by 1000, and also derived it from the previous, not current
state.

Reported-by: Christian Decker
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-10-07 14:00:17 +10:30
Rusty Russell
ab569c069f peer: add FIXME for the STATE_INIT case.
We store peers in the database for STATE_INIT, but they don't reconnect
properly.  We should not forget STATE_INIT dropped peers, but use some
timeout mechanism if we can't reconnect to clean up.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-10-07 14:00:17 +10:30
Rusty Russell
fb99e0ccb0 peer: fail immediately if we detect double-connection.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-10-07 14:00:16 +10:30
Rusty Russell
0f6c387899 peer: delete from database if we haven't passed init.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-10-07 14:00:16 +10:30
Rusty Russell
1f1bd56e2a peer: add more logging for anchor events.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-10-07 14:00:16 +10:30
Rusty Russell
93b72332bd Handle anchor in a run of blocks.
Fix dff50c3a5f: if multiple blocks come between
polling, we'll get called once for the new tip.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-10-07 13:53:18 +10:30
Rusty Russell
dff50c3a5f peer: do not send anchor depth input twice.
We *should* be in a state which accepts it (could happen with reorg),
and there's no reason to test for greater than depth since we must process
blocks in order.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-09-13 15:26:44 +09:30
Rusty Russell
7b5806fef2 peer: give more sensible error if anchor is too large.
Currently we get the odd message "Own anchor has insufficient funds".

Reported-by: Christian Decker
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-09-13 12:40:32 +09:30
Rusty Russell
13593d4cbf peer: don't try to change fees while we're still setting up channel.
And add a FIXME about doing feechanges properly.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-09-13 12:40:28 +09:30
Rusty Russell
221a96cdeb getinfo: new RPC command
Useful for getting ID, what port (if not set in config file).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-09-13 03:37:07 +09:30
Rusty Russell
fce9ee29e3 db: always call db_update_our_closing in a transaction.
It's not in a transaction in one caller, so wrap that.
This removes some more error handling code.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-09-06 16:47:49 +09:30
Rusty Russell
5bcc9047b0 db: save error, return it when we commit transaction.
This saves a lot of error handling, and puts it in the place we care about.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-09-06 16:47:49 +09:30
Rusty Russell
ea41386ed3 daemon: rename all the low-level commands to dev-
Rename the structs to match (and remove dev-echo).

This makes it clear that they're not the normal API.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-09-06 16:47:49 +09:30
Rusty Russell
27715f7732 invoice: order by when they were paid.
We need some ordering to deliver them to the JSON "waitinvoice" command;
we use a counter where 0 means "unpaid".

We keep two lists now, one for unpaid and one for paid invoices.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-09-06 16:47:49 +09:30
Rusty Russell
68632e6020 Use "msatoshi" not "msatoshis" everywhere.
Including in JSON API.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-09-06 16:47:49 +09:30
Rusty Russell
060ff29b45 Rename payment to invoice.
And rename JSON's accept-payment command to invoice.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-09-06 16:47:49 +09:30
Rusty Russell
ab125f709b db: save and restore accepted payments.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-09-06 13:47:33 +09:30
Rusty Russell
b47fbfead0 db: Always fail HTLC inside a transaction.
This is important when we put payments in the database: they need to be
updated atomically as the HTLC is.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-09-02 12:02:18 +09:30
Rusty Russell
23049f09a9 db: Always fulfill HTLC inside a transaction.
This is important when we put payments in the database: they need to be
updated atomically as the HTLC is.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-09-02 12:01:18 +09:30
Rusty Russell
1ed4dbde05 peer: add peer_fail helper.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-09-02 12:00:18 +09:30
Rusty Russell
15b42b89db peer: fix comparison bug if our connection_fee is negative.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-08-31 17:19:41 +09:30
Rusty Russell
d8af789bbb channel: remove enum channel_side, rename htlc_side to side.
We had enum channel_side (OURS, THEIRS) for which end of a channel we
had, and htlc_side (LOCAL, REMOTE) for who proposed the HTLC.

Combine these both into simply "enum side".

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-08-31 16:06:32 +09:30
Rusty Russell
f8fa8c8dff peer: handle case correctly where they can't handle fees.
When they propose an HTLC to us, they need to be able to cover both it,
and the associated fees.  When it gets acked and applied to them, however,
they may no longer be able to afford the fees; this is OK and expected.

So add a flag to say whether they can dig into fees or not: without
this patch the code calls fatal() on the next patch which tests it.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-08-31 16:06:32 +09:30
Rusty Russell
1518f4424e log: add channel_state logging ability.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-08-31 16:06:32 +09:30
Rusty Russell
89235e0904 handle_pkt_commit: don't abort on database error.
Simply mark an error with this peer.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-08-31 16:06:32 +09:30
Rusty Russell
bb0bf2b5ad log: add easy way to log hex blobs.
Use it in one case, and also fix another logging FIXME.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-08-31 16:06:32 +09:30
Rusty Russell
87af51a422 daemon: remove three fixed FIXMEs.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-08-31 16:06:31 +09:30
Rusty Russell
42cf0ef543 peer: do logging before crypto is on.
We create a logging object when we connect, then carry it through.  If
it comes from the database, we just use the peerid as the log prefix.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-08-31 16:06:31 +09:30
Rusty Russell
9bd6a10f49 peer: fix close before their sig has been received in corner case.
If we haven't received their closing signature yet, we might try to
send the closing packet anyway (and segfault).  Make sure we have
their signature before trying that.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-08-31 16:06:31 +09:30
Rusty Russell
2610799bda pay: split into getroute and sendpay
This is less convenient to use, but makes far more sense for a real
user (like a wallet).  It can ask about the route, then decide whether
to use it or not.

This will make even more sense once we add a parameter to control how
long we let the HTLC be delayed for, so a client can query for high,
medium and low tolerances and compare results.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-08-31 16:06:08 +09:30
Rusty Russell
012574790d pay: make interface idempotent.
We stopped automatically retransmitting locally-generated add/removes
after a reconnect, but this breaks the "pay" interface as it stands.

The correct solution to this is to make the pay interface idempotent:
you can trigger it as many times as you want and it will only succeed
once.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-08-31 16:04:59 +09:30
Rusty Russell
74107ff1ea peer: resend failures on restart/reconnect.
If we've not relayed a failure yet (ie. we relayed it instantly, but it
wasn't confirmed), we need to redo it.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-08-31 14:51:43 +09:30
Rusty Russell
d4ddebd55a htlc: save fail message in HTLC.
It's not currently encrypted, but at least you get some idea now why
an HTLC failed.  We (ab)use HTTP error codes for the moment.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-08-31 14:51:41 +09:30
Rusty Russell
192d5402ff peer: remove unused arg from our_htlc_failed().
And fix one case where we didn't set htlc r value (onchain redemption).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-08-30 20:14:57 +09:30
Rusty Russell
7e95637cb5 peer: on restart, resend any fulfilled HTLCs.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-08-30 20:13:57 +09:30
Rusty Russell
1bd2a28caa peer: on restart, only resubmit added HTLCs which weren't already routed.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-08-30 20:12:57 +09:30
Rusty Russell
d964ad2d94 daemon: don't restart newhtlc/failhtlc/fulfill htlc commands on reconnect,
These low level commands we restarted on reconnect for ease of
testing.  Don't do that, and check that we're connected when those
commands occur.

This introduces subtle issues with --manual-commit --reconnect: restarting
node1 also forgets uncommitted things from node2, requiring reordering for
some tests.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-08-30 20:11:57 +09:30
Rusty Russell
7550ec23ec daemon: new command gethtlcs.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-08-30 20:09:57 +09:30
Rusty Russell
b0278d7152 peer: fix maximum htlc value when we disconnect.
If we send an HTLC #1, then get disconnected before a confirm, we will
forget it.  But we've incremented peer->htlc_id_counter, so when we offer
it again we'll make it HTLC #2, which is non-consecutive.

To make this clear, we always start htlc ids at 0 now.  That revealed
the bugs handled in the previous patch.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-08-28 12:51:57 +09:30
Rusty Russell
72a9cfbbe2 test: test feerate changes.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-08-26 15:33:47 +09:30
Rusty Russell
1305df6417 daemon: send feechange requests.
This is a bit overzealous, but good for testing.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-08-26 15:33:40 +09:30
Rusty Russell
31bdf384cb daemon: accept feechange packets.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-08-26 15:33:30 +09:30
Rusty Russell
e7b003b499 daemon: handle feechange requests.
I originally overloaded struct htlc for this, as they go through the
same states, but separating them turned out to be clearer.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-08-26 15:31:19 +09:30
Rusty Russell
e40a070014 json_commit: document usage correctly.
It's pretty horrible to hand the entire tx, but at least document it.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-08-19 10:34:12 +09:30
Rusty Russell
319c2ec5fc peer: keep addresses separately from peers.
This makes more sense eventually: we may know the network addresses of
many peers, not just those we're connecting to.  So keep a mapping, and
update it when we successfully connect outwards.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-08-18 14:25:14 +09:30
Rusty Russell
9f512f6540 peer: restart from the other side.
Testing this revealed that we can't just reconnect when we have something to
send, as we might be NATed; we should try to reconnect anyway.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-08-18 14:25:14 +09:30