Commit Graph

5915 Commits

Author SHA1 Message Date
Rusty Russell 745634d9b9 gossipd: don't catch pending node_announcements more than once.
We catch node_announcements for nodes where we haven't finished
analyzing the channel_announcement yet (either because we're still
checking UTXO, or in this case, because we're waiting for a channel_update).

But we reference count the pending_node_announce, so if we have
multiple channels pending, we might try to insert it twice.  Clear it
so this doesn't happen.

There's a second bug where we continue to catch node_announcements
until *all* the channel_announcements are no longer pending; this is fixed
by removing it from the map.

Fixes: #2735
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-06-13 05:58:09 +00:00
Rusty Russell 67eb26c5e6 lightningd: fix bogus channel iteration on setchannelfee
Setting channel to NULL then iterating doesn't work!

Fixes: #2733
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-06-13 01:28:15 +00:00
Rusty Russell e9ff8e4b4e openingd_control: fix merge error with json_stream_success.
That was changed to start the response object, which broke the openingd
code once we merged.

Of course, I should have *renamed it* when I changed the semantic!

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-06-12 06:21:53 +00:00
Rusty Russell 4c118bcdba openingd: fix compile error caused by merge.
Compile broke because we were using low-level JSON primitives here
(which, incidentally, would produce bad JSON now, since we can't just
put a raw string inside an object!).

Use json_add_string, which also has the benefit of escaping JSON
for us.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-06-12 06:21:53 +00:00
lisa neigut c0475d0d9d doc: add manpages for fundchannel_[start,complete,cancel]
Manpages for the manpage-god!!
2019-06-12 02:22:43 +00:00
lisa neigut 388f31a151 funding: update CHANGELOG with new RPC calls
Let people know what's changed
2019-06-12 02:22:43 +00:00
lisa neigut c00e0d2936 funding: rename fundchannel_continue -> _complete
Renaming. "complete" more accurately describes what we're doing here.
2019-06-12 02:22:43 +00:00
lisa neigut 3ae78a61fa tests: finish up test for external funding flow
Add to test for fundchannel with composing and broadcasting
an external transaction.
2019-06-12 02:22:43 +00:00
lisa neigut 5aad642c59 opening: add fundchannel_cancel command
Provide the option to cancel a funding-opening with a peer.
Must either call `fundchannel_cancel` or `fundchannel_continue`
2019-06-12 02:22:43 +00:00
lisa neigut 478762dbd2 funding: wire up funding_continue
Big wiring re-org for funding-continue

In openingd, we move the 'persistent' state (their basepoints,
pubkey, and the minimum_depth requirement for the opening tx) into
the state object. We also look to keep code-reuse between
'continue' and normal 'fundchannel' as high as possible. Both
of these call the same 'fundchannel_reply' at the end.

In opening_control.c, we remap fundchannel_reply such that it is
now aware of the difference between an external/internally funded
channel open. It's the same return path, with the difference that
one finishes making and broadcasting the funding transaction; the
other is skips this.
2019-06-12 02:22:43 +00:00
lisa neigut 8a60caaed9 funding: add a 'inflight' marker
We need a way to gate allowing continue to proceed or not
2019-06-12 02:22:43 +00:00
lisa neigut 7ea21c36b1 fundchannel: add txout field to RPC/API
We'll need the outpoint for the funding output.
2019-06-12 02:22:43 +00:00
lisa neigut b0b813a171 test: add initial tests for starting an external fundchannel
Test for getting through the address generation portion.
2019-06-12 02:22:43 +00:00
lisa neigut dd11d3bd81 lightningd: add start for fundchannel_continue
Add an RPC method (not working at the moment) called
`fundchannel_continue` that takes as its parameters a
node_id and a txid for a transaction (that ostensibly has an output
for a channel)
2019-06-12 02:22:43 +00:00
lisa neigut 52042bde80 opening: stash amount outside of the wtx
Some channels won't be opened with a wtx struct, so keep
the total funding amount separate from it so we can
show some stats for listpeers.

Note that we're going to need to update/confirm this once
the transaction gets confirmed.
2019-06-12 02:22:43 +00:00
lisa neigut 6e5928aa1e openingd: update billboard with funding info
Make it easier for a user to know what's going on with
a channel in `listpeers`.
2019-06-12 02:22:43 +00:00
lisa neigut 23e7846053 pylightning: add fundchannel_start
Add method to rpc handler
2019-06-12 02:22:43 +00:00
lisa neigut 5920e656cf opening: wire up walking through open channel up thru accept
Fill in details to make fundchannel_start work.
2019-06-12 02:22:43 +00:00
lisa neigut 685aa47b65 openingd: pull out setup funder checks into separate method
Useful for adding the funder_start stuff
2019-06-12 02:22:43 +00:00
lisa neigut 8103acd9b3 opening: add entry point for `funding_start rpc command
Beginnings of wiring up the funding_start rpc command. missing
the part that actually starts the funding channel dance.
2019-06-12 02:22:43 +00:00
lisa neigut 846bc9cbc4 openingd: allow funding_failed to complete successfully
For the `fundchannel_cancel` we're going to want
to 'successfully' fail a funding channel operation. This allows
us to report it a failure back as an RPC success, instead of
automatically failing the RPC request.
2019-06-12 02:22:43 +00:00
lisa neigut 1b2a593b05 tests: default all addresses to bech32
Needed for composing a transaction externally to c-lightning, using
bitcoind util.
2019-06-12 02:22:43 +00:00
lisa neigut eb0b3d7b09 json: correct error message for param parser
Looks like copy-paste from another commit didn't update
the field for this
2019-06-12 02:22:43 +00:00
lisa neigut a9d0550cf4 common: pull out scriptPubkey address method
We're going to need this for P2WSH scripts. pull it out into
a common file plus adopt the sanity checks so that it will allow for
either P2WSH or P2WPKH (previously only encoded P2WPKH scripts)
2019-06-12 02:22:43 +00:00
Rusty Russell 5a520f4a07 plugin: don't call notification after free.
This is an old bug, where a plugin can get called while we're shutting
down (and have freed plugins), but it's triggered more reliably by the
new warning notification hook.

For good measure, we also make freeing a plugin self-delete.

Valgrind error file: valgrind-errors.16763
==16886== Invalid read of size 8
==16886==    at 0x422919: plugins_notify (plugin.c:1096)
==16886==    by 0x413919: notify_warning (notification.c:61)
==16886==    by 0x412BDE: logv (log.c:251)
==16886==    by 0x412A98: log_ (log.c:311)
==16886==    by 0x4044BE: bcli_finished (bitcoind.c:178)
==16886==    by 0x459480: destroy_conn (poll.c:244)
==16886==    by 0x459499: destroy_conn_close_fd (poll.c:250)
==16886==    by 0x4619E1: notify (tal.c:235)
==16886==    by 0x461A7E: del_tree (tal.c:397)
==16886==    by 0x461AB5: del_tree (tal.c:407)
==16886==    by 0x461AB5: del_tree (tal.c:407)
==16886==    by 0x461AB5: del_tree (tal.c:407)
==16886==  Address 0x634a578 is 40 bytes inside a block of size 352 free'd
==16886==    at 0x4C2EDEB: free (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==16886==    by 0x461AFD: del_tree (tal.c:416)
==16886==    by 0x461FB7: tal_free (tal.c:481)
==16886==    by 0x411E0A: main (lightningd.c:841)
==16886==  Block was alloc'd at
==16886==    at 0x4C2DB8F: malloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==16886==    by 0x4617CE: allocate (tal.c:245)
==16886==    by 0x461E4C: tal_alloc_ (tal.c:423)
==16886==    by 0x42255E: plugins_new (plugin.c:106)
==16886==    by 0x41133D: new_lightningd (lightningd.c:218)
==16886==    by 0x411AD4: main (lightningd.c:649)

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-06-12 02:00:15 +00:00
Rusty Russell c6ec9443b9 jsonrpc: don't return "stop" until we actually have freed resources.
This is a painpoint with testing, that there's a noticable delay between
"Shutting down" from lightning-cli and being able to restart lightningd.

This fixes that by creating a canned response for this case, which is
simply written out immediately before exit.  At this point, the pidfile
has been deleted, the sockets have been closed, and the database
has been closed.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-06-12 02:00:15 +00:00
Rusty Russell d817735dc2 lightningd: use ccan/json_out.
This is now a fairly simple transition, which only effects the internals
of json_stream.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-06-12 02:00:15 +00:00
Rusty Russell 7f75043ab2 lightningd: tighten interal json_stream API.
Move it closer to ccan/json_out, in preparation for using that as a
replacement.

In particular:

1. Add a 'quote' field in json_add_member.
2. json_add_member now always escapes if 'quote' is true.
3. json_member_direct is exposed to allow avoiding of escaping.
4. json_add_hex can use this, so no longer needs to be in json_stream.c.
5. We don't make JSON manually, but always use helpers.
6. We now flush the stream (wake reader) only when we close it, or mark
   command as pending.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-06-12 02:00:15 +00:00
Rusty Russell adc4bf1817 pylightning: remove 0.6.2 JSON compat wedge.
The next commit breaks it: `if b' }\n' not in buff:` is always true since
we're about to clean up our JSON so there won't be a space.  I could have
hacked the space in our JSON, but 6 months is long enough anyway.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-06-12 02:00:15 +00:00
Rusty Russell bb7bbd03c5 lightningd: have json_stream_success start the "result" object.
"result" should always be an object (so that we can add new fields),
so make that implicit in json_stream_success.

This makes our primitives well-formed: we previously used NULL as our
fieldname when calling the first json_object_start, which is a hack
since we're actually in an object and the fieldname is 'result' (which
was already written by json_object_start).

There were only two cases which didn't do this:
1. dev-memdump returned an array.  No API guarantees on this.
2. shutdown returned a string.

I temporarily made shutdown return an empty object, which shouldn't
break anything, but I want to fix that later anyway.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-06-12 02:00:15 +00:00
Rusty Russell 0e336ac252 plugins/pay: use proper JSON construction for failure paths.
The string cut & paste hack was nasty; make ->failure a json_out
object so we can splice it in properly.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-06-12 02:00:15 +00:00
Rusty Russell c585f22711 libplugin: update API to use json_out.
We now hand around struct json_out members, rather than using formatted
strings, so plugins need to construct them properly.

There's no automatic conversion between ' and " any more, so those
are eliminated too.  pay still uses some manual construction of elements.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-06-12 02:00:15 +00:00
Rusty Russell c77e29c403 libplugin: use json_out internally.
Since this handles escaping for us, this automatically fixes our previous
escaping issued.

Fixes: #2612
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-06-12 02:00:15 +00:00
Rusty Russell 220449e1cd ccan: import ccan/json_out and ccan/json_escape.
These are generalized from our internal implementations.

The main difference is that 'struct json_escaped' is now 'struct
json_escape', so we replace that immediately.

The difference between lightningd's json-writing ringbuffer and the
more generic ccan/json_out is that the latter has a better API and
handles escaping transparently if something slips through (though
it does offer direct accessors so you can mess things up yourself!).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-06-12 02:00:15 +00:00
Rusty Russell 26cdf9d3dc plugins/pay: don't retry routehint if it contains already-eliminated channel.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-06-12 02:00:15 +00:00
Rusty Russell 260febd88b plugins/pay: fix attempt counter on failure message.
An "attempt" is when we actually try to send, not every route lookup
we do.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-06-12 02:00:15 +00:00
Rusty Russell 1e32b4ab29 gossipd: adjust gossip filters if we discover we're missing gossip.
We pick up to three random peers and ask them to gossip more.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-06-12 00:37:46 +00:00
Rusty Russell 6830233d0b gossipd: control gossip level so we don't get flooded by peers.
We seek a certain number of peers at each level of gossip; 3 "flood"
if we're missing gossip, 2 at 24 hours past to catch recent gossip, and
8 with current gossip.  The rest are given a filter which causes them
not to gossip to us at all.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-06-12 00:37:46 +00:00
Rusty Russell f5ea57d4c0 gossipd: reset gossip_missing if no reports for 10 minutes.
An arbitrary timeout.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-06-12 00:37:46 +00:00
Rusty Russell b9053767e7 gossipd: query unknown short_channel_ids, note if they were really missing.
The first sign that we're missing gossip is that we get a channel_update
for an unknown channel.  The peer might be wrong (or lying), but if it turns
out to be a real channel, we were definitely missing something.

This patch does two things: queries when we get an unknown channel_update,
and then notes that a channel_announcement was from such an update when
it's finally processed.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-06-12 00:37:46 +00:00
Rusty Russell 18069ab3da gossipd: APIs return more information about routing message handling.
In particular, we'll need to know the short_channel_id if a
channel_update is unknown (implies we're missing a channel), and whether
processing a pending channel_announcement was successful (implies that
the channel was real).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-06-12 00:37:46 +00:00
Rusty Russell 5ef7aa70d2 gossipd: prepare for internally-generated short-channel-id queries.
Up until now we only generated these in dev mode for testing.  Hoist
into common code, turn counter into a flag (we're only allowed one!)
and note if query is internal or not.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-06-12 00:37:46 +00:00
Rusty Russell 21c920a8e8 gossipd: note if loaded store seems reasonably up-to-date.
If not, we can ask peers for full gossip (for now we just set a flag).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-06-12 00:37:46 +00:00
Rusty Russell 0d2a4830ed ccan: update to faster and correct crc32c implementation.
I decided to try a faster implementation, only to find our crc32c was
not correct!  Ouch.

I removed the crc32c functions from ccan/crc, and added a new crc32c
module which has the Mark Adler x86-64-optimized variants.

We bump gossip_store version again, since csums have changed.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-06-11 23:40:10 +00:00
darosior 7ce4fcd983 Added a CHANGELOG brag line about 'fundchannel' accepting an utxo list 2019-06-11 23:24:07 +00:00
darosior 2436214145 fundchannel: Add some tests to fund channels by utxos 2019-06-11 23:24:07 +00:00
darosior 1b29b063b2 fundchannel: Update the manpage and Pylightning's method
Add the new 'utxo' parameter to both
2019-06-11 23:24:07 +00:00
darosior ac038b340b fundchannel: Add a new 'utxo' parameter
This new parameter takes a list of outpoints (as txid:vout) and fund a channel from the corresponding utxos.
Example : fundchannel <id> 10000 normal 1 [10767f0db0e568127fffd7f70a154d4599f42d62babf63230a7c3378bfce3cb0:0, c9e040e0b5fc8c59d5e7834108fbc5583001f414dd83faf0a05cff9d1a92d32c:0]
2019-06-11 23:24:07 +00:00
darosior ca4b07c529 json: add a helper to split a json token given a specific character
credits @rustyrussell
2019-06-11 23:24:07 +00:00
Rusty Russell db22d2ba9a pytest: simplify and annotate test_channel_drainage.
Remove gratuitous prints, add explanations of what's going on,
and demonstrate that we can add a final trimmed HTLC but not
a non-trimmed one.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-06-11 23:19:11 +00:00