We have to allow them (as otherwise `fees_collected_msat` in getinfo breaks),
but it means that actually, in_htlc_id might be missing in listforwards
(also, out_htlc_id might be missing, which we didn't catch before).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Fixes: #5628
Otherwise what the hook sees is actually a lie, and if it sets it
we might override it.
The side effect is that we add an explicit "forward_to" field, and
allow hooks to override it. This lets a *hook* control channel
choice explicitly.
Changelod-Added: Plugins: `htlc_accepted_hook` return can specify what channel to forward htlc to.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
It's a bit more optimal, and tells gossipd exactly what height the
spend occurred at (with multiple blocks, it's not always the current
height!). It will need that next patch.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Added: Protocol: We now set the `dont_forward` bit on private channel_update's message_flags (as per latest BOLTs).
This is actually what the autoclean plugin wants, especially since
you can't otherwise delete a payment which has failed then succeeded.
But insist on neither or both being specified, at least for now.
Changelog-Added: JSON-RPC: `delpay` takes optional `groupid` and `partid` parameters to specify exactly what payment to delete.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Previous commit was a hack which *always* batched where possible, this
is a more sophisticated opt-in varaint, with a timeout sanity check.
Final performance for cleaning up 1M pays/forwards/invoices:
```
$ time l1-cli autoclean-once succeededpays 1
{
"autoclean": {
"succeededpays": {
"cleaned": 1000000,
"uncleaned": 26895
}
}
}
real 6m9.828s
user 0m0.003s
sys 0m0.001s
$ time l2-cli autoclean-once succeededforwards 1
{
"autoclean": {
"succeededforwards": {
"cleaned": 1000000,
"uncleaned": 40
}
}
}
real 3m20.789s
user 0m0.004s
sys 0m0.001s
$ time l3-cli autoclean-once paidinvoices 1
{
"autoclean": {
"paidinvoices": {
"cleaned": 1000000,
"uncleaned": 0
}
}
}
real 6m47.941s
user 0m0.001s
sys 0m0.000s
```
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Added: JSON-RPC: `batching` command to allow database transactions to cross multiple back-to-back JSON commands.
This shows the benefits of batching when being slammed by autoclean:
Before:
```
plugin-autoclean: last 1000 deletes took 6699022 nsec each
plugin-autoclean: last 1000 deletes took 6734025 nsec each
plugin-autoclean: last 1000 deletes took 6681189 nsec each
plugin-autoclean: last 1000 deletes took 6597148 nsec each
plugin-autoclean: last 1000 deletes took 6637085 nsec each
plugin-autoclean: last 1000 deletes took 6801425 nsec each
plugin-autoclean: last 1000 deletes took 6788572 nsec each
plugin-autoclean: last 1000 deletes took 6603641 nsec each
plugin-autoclean: last 1000 deletes took 6642947 nsec each
plugin-autoclean: last 1000 deletes took 6590495 nsec each
plugin-autoclean: last 1000 deletes took 6695076 nsec each
plugin-autoclean: last 1000 deletes took 6477981 nsec each
```
After:
```
plugin-autoclean: last 1000 deletes took 342764 nsec each
plugin-autoclean: last 1000 deletes took 375031 nsec each
plugin-autoclean: last 1000 deletes took 357564 nsec each
plugin-autoclean: last 1000 deletes took 381581 nsec each
plugin-autoclean: last 1000 deletes took 337989 nsec each
plugin-autoclean: last 1000 deletes took 329391 nsec each
plugin-autoclean: last 1000 deletes took 328322 nsec each
plugin-autoclean: last 1000 deletes took 372810 nsec each
plugin-autoclean: last 1000 deletes took 351228 nsec each
plugin-autoclean: last 1000 deletes took 413885 nsec each
plugin-autoclean: last 1000 deletes took 348317 nsec each
```
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Using `listfowards` for this wrong; expose this directly if people
care (and unlike listforwards, which could be deleted, we have to
remember these while the channel is still open!).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Added: JSON-RPC: `listhtlcs` new command to list all known HTLCS.
And document that we never know payment_hash.
Changelog-Added: JSON-RPC: `listforwards` now shows `in_htlc_id` and `out_htlc_id`
Changelog-Changed: JSON-RPC: `listforwards` now never shows `payment_hash`; use `listhtlcs`.
The old `experimental-accept-extra-tlv-types` is now `accept-htlc-tlv-types`.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Added: Config: `accept-htlc-tlv-types` lets us accept unknown even HTLC TLV fields we would normally reject on parsing (was EXPERIMENTAL-only `experimental-accept-extra-tlv-types`).
Technically this is a non-conformance with the spec, hence the `dev`
flag to opt-in, however I'm being told that it is also implemented in
other implementations. I'll follow this up with a proposal to the spec
to remove the checks we now bypass.
Changelog-Added: JSON-RPC: `fundchannel`, `multifundchannel` and `fundchannel_start` now accept a `reserve` parameter to indicate the absolute reserve to impose on the peer.
Add memleak_ignore_children() so callers can do exclusions themselves.
Having two exclusions was always such a hack!
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This allows GDB to print values, but also allows us to use them in
'case' statements. This wasn't allowed before because they're not
constant terms.
This also made it clear there's a clash between two error codes,
so move one.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Changed: JSON-RPC: Error code from bcli plugin changed from 400 to 500.
First, merge the _ahf_ and non-ahf interfaces.
Second, remove the always-NULL txs->cmd field.
Then, add optional id_prefix for bitcoind_sendrawx, so if it's
triggered by a command (e.g. "withdraw") it's shown correctly in logs.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Usually the calls are spontanous, so it's just "cln:<method>#NNN", but
json_invoice() calls listincoming, and json_checkmessage calls
listnodes, so those become "cli:invoice-<pid>/cln:listincoming#NNN".
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This is cleaner because, the `remote_addr` and `discovered_ip` are
related but two different things.
Within connectd and lightningd we use the peers `remote_addr` feature
to validate (and guess a port) to be used for IP discovery.
Also when a peer reports us a `remote_addr`, this is given to the plugin API
via the `peer_connected` hook. The network port here is not modified for
godd reason! This can be used i.e. to detect if we are behind a NAT.
But once lightningd figures enough peers report the same `remote_addr`,
it sets the port to the selected network and tells gossipd to use that for
`node_announcement` updates.
Hence, within gossipd, there is no (should not be) `remote_addr`.
Changelog-None
This is a good sanity check that users understand that if they upgrade
to master mid-cycle they can't go back!
Suggested-by: @wtogami
Changelog-Added: Config: `--database-upgrade=true` required if a non-release version wants to (irrevocably!) upgrade the db.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We can (and probably should!) allocate this off tmpctx rather than
off the response.
Also, json_add_invoice doesn't actually match the normal pattern,
so fix that.
```
E ValueError:
E Node errors:
E Global errors:
E - Node /tmp/ltests-_vbj8az8/test_pay_fail_unconfirmed_channel_1/lightning-2/ has memory leaks: [
E {
E "backtrace": [
E "ccan/ccan/tal/tal.c:442 (tal_alloc_)",
E "wallet/invoices.c:81 (wallet_stmt2invoice_details)",
E "wallet/invoices.c:697 (invoices_get_details)",
E "wallet/wallet.c:2946 (wallet_invoice_details)",
E "lightningd/invoice.c:1296 (json_add_invoices)",
E "lightningd/invoice.c:1370 (json_listinvoices)",
E "lightningd/jsonrpc.c:625 (command_exec)",
E "lightningd/jsonrpc.c:753 (rpc_command_hook_final)",
E "lightningd/plugin_hook.c:280 (plugin_hook_call_)",
E "lightningd/jsonrpc.c:841 (plugin_hook_call_rpc_command)",
E "lightningd/jsonrpc.c:938 (parse_request)",
E "lightningd/jsonrpc.c:1035 (read_json)",
E "ccan/ccan/io/io.c:59 (next_plan)",
E "ccan/ccan/io/io.c:407 (do_plan)",
E "ccan/ccan/io/io.c:417 (io_ready)",
E "ccan/ccan/io/poll.c:453 (io_loop)",
E "lightningd/io_loop_with_timers.c:22 (io_loop_with_timers)",
E "lightningd/lightningd.c:1194 (main)",
E "../csu/libc-start.c:308 (__libc_start_main)"
E ],
E "label": "wallet/invoices.c:81:struct invoice_details",
E "parents": [
E "common/json_stream.c:41:struct json_stream",
E "ccan/ccan/io/io.c:91:struct io_conn **NOTLEAK**",
E "lightningd/lightningd.c:107:struct lightningd"
E ],
E "value": "0x55a57a77de08"
E }
E ]
```
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We were double counting channel lease fees because we were double firing
the channel open event sequence (so to speak). If we don't report
balances for unopened channels, we don't have this problem?
Changelog-Changed: Plugins: `balance_snapshot` notification does not send balances for channels that aren't locked-in/opened yet
Be more graceful in shutting down: this should fix the issue where
bookkeeper gets upset that its commands are rejected during shutdown,
and generally make things more graceful.
1. Stop any new RPC connections.
2. Stop any per-peer daemons (channeld, etc).
3. Shut down plugins.
4. Stop all existing RPC connections.
5. Stop global daemons.
6. Free up peer, chanen HTLC datastructures.
7. Close database.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Changed: Plugins: RPC operations are now still available during shutdown.
This includes the recommendation that we use 10 minute grace period,
so add quotes to where we use that.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This alters the billboard, but that's a human-readable thing so not
noted in CHANGELOG.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Changed: JSON-RPC: `listpeers` `status` now refers to "channel ready" rather than "funding locked" (BOLT language change for zeroconf channels)
Changelog-Added: JSON-RPC: `channel_opened` notification `channel_ready` flag.
Changelog-Deprecated: JSON-RPC: `channel_opened` notification `funding_locked` flag (use `channel_ready`: BOLTs namechange).
This contains the zeroconf stuff, with funding_locked renamed to
channel_ready. I change that everywhere, and try to fix up the
comments.
Also the `alias` field is called `short_channel_id`.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Changed: Protocol: `funding_locked` is now called `channel_ready` as per latest BOLTs.
We can do this now the function is cleaned up.
Always better to do the work inside param() since then `check`
gets the benefit.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Removed: Old order of the `status` parameter in the `listforwards` rpc command (deprecated in v0.10.2)
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Removed: JSONRPC: RPC framework now requires the `"jsonrpc"` property inside the request (deprecated in v0.10.2)
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Somehow we missed this deprecation, found by grep.
Changelog-Removed: JSON API: Removed double wrapping of `rpc_command` payload in `rpc_command` JSON field (deprecated v0.8.2)
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Currently discovered IPs are only announced when we don't have any
usable addresses detected or configured already. However, the cli
command `getinfo` still showed theses unannounced addr as if they
were announced.
Changelog-Fixed: peer_control: getinfo showing unannounced addresses.
We annotate them with UNNEEDED, which is legal but weird, but it
makes gcc (at least 11.2.0) complain about shadowing:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106424
I simply removed the names.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Reported-by: Warren Togami
Changelog-Changed: `sendpay` and `sendonion` now obey the first hop "channel" short_channel_id, if specified.
Changelog-Deprecated: `sendpay` and `sendonion` could take a bogus first hop "channel" short_channel_id
Again, we should use the real channel_type, but we approximate.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Added: Protocol: private channels will only route using short-channel-ids if channel opened with option_scid_alias-supporting peer.
We *should* remember the channel type, since this is only required
if they set the channel_type to include option_scid_alias.
However, since we support channel upgrade, channel_type really needs
a new table. I have a patch for that, from my abandoned original
"fastopen" branch for aliases, but it's too big a chance for rc2 IMHO.
Meanwhile, we allow exposeprivatechannels's scids to be either real or
the aliases.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Added: Protocol: invoice routehints will use fake short-channel-ids for private channels if channel opened with option_scid_alias-supporting peer.
AFAICT we should have been doing this since we started sending and
receiving it, but didn't.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Added: Protocol: we now advertize the `option_channel_type` feature (which we actually supported since v0.10.2)
Previously, "funding_locked" was always "true"!
(It's actually been wrong since its introduction in v0.7.3!)
Changelog-Fixed: Plugins: `channel_opened` notification `funding_locked` field is now accurate: was always `true`.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
First, how we record "our_funds" and then apply pushes vs lease_fees
(for liquidity ad buys/sales) was exactly opposite.
For pushes we were reporting the total funded into the channel, with the
push representing how much we'd later moved to the peer.
For lease_fees we were rerporting the total in the channel, with the
push representing how much was already moved to the peer.
We fix this (from a view perspective) by re-adding lease fees to what's
reported in the channel funding totals. Since this is now new behavior
(for leased channel values), we added new fields so we can take the old
field names thru a deprecation cycle.
We also make it possible to differentiate btw a push and a lease_fee
(before they were all the same), by adding to new fields to `listpeers`:
`fee_paid_msat` and `fee_rcvd_msat`.
This allows us to avoid math in the bookkeeper, instead we just pick
the numbers out directly and record them.
Fixes#5472
Changelog-Added: JSON-RPC: `listpeers` now has a few new fields for `funding` (`remote_funds_msat`, `local_funds_msat`, `fee_paid_msat`, `fee_rcvd_msat`).
Changelog-Deprecated: JSON-RPC: `listpeers`.`funded` fields `local_msat` and `remote_msat` are now deprecated.
9cad7d6a6a changed the behavior of `channel_active`, which slightly
broke how our balance snapshots work (we need info about channels that
aren't on-chain yet).
This patches adds AWAITING_UNILATERAL back in.
We used to tell connectd to remember our connect delay, and hand it
back (increased if necessary).
Instead, simply record when we last tried to connect. If it was less
than 10 minutes ago, double delay (up to 5 minutes max), otherwise
reset delay to 1 second.
This covers all scenarios: whether we reconnect then immediately
disconnect, or never successfully connect, it doesn't matter.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Fixes: #5453
We need a record of the channel account before you start sending
payments through it. Normally we don't start allowing payments to be
sent until after the channel has locked in but zeroconf does away with
this assumption.
Instead we push out a "channel_proposed" event, which should only show
up for zeroconfs.
If we expect further events for an onchain output (because we can steal
it away from the 'external'/rightful owner), we mark them.
This prevents us from marking a channel as 'onchain-resolved' before
all events that we're interested in have actually hit the chain.
Case that this matters:
Peer publishes a (cheating) unilateral close and a timeout htlc (which
we can steal).
We then steal the timeout htlc.
W/o the stealable flag, we'd have marked the channel as resolved when
the peer published the timeout htlc, which is incorrect as we're still
waiting for the resolution of that timeout htlc (b/c we *can* steal it).
it's nice to know what node your channel was opened with. in theory we
could use listpeers to merge the data after the fact, except that
channels disappear after they've been closed for a bit. it's better to
just save the info.
we print it out in `listbalances`, as that's a great place account level
information
We don't push out a coin_move for a channel open until it's locked in,
but this causes problems for channels that close before they're locked.
So if we go the "close before locked in" route, we push out a channel
open event.
These will get a blockheight of 0, if we haven't seen the
funding transaction in a block yet.
------------------------------- Valgrind errors --------------------------------
Valgrind error file: valgrind-errors.493330
==493330== Conditional jump or move depends on uninitialised value(s)
==493330== at 0x154051: opt_add_addr_withtype (options.c:275)
==493330== by 0x154406: opt_add_announce_addr (options.c:302)
==493330== by 0x2696E6: parse_one (parse.c:121)
==493330== by 0x25CFB5: opt_parse (opt.c:228)
==493330== by 0x155DB6: handle_opts (options.c:1413)
==493330== by 0x127317: main (lightningd.c:994)
==493330==
{
<insert_a_suppression_name_here>
Memcheck:Cond
fun:opt_add_addr_withtype
fun:opt_add_announce_addr
fun:parse_one
fun:opt_parse
fun:handle_opts
fun:main
}
--------------------------------------------------------------------------------
Leaving base_dir /tmp/ltests-iyf2dw3n intact, it still has test sub-directories with failure details: ['test_announce_dns_without_port_1']
====================================== short test summary info ======================================
ERROR tests/test_gossip.py::test_announce_dns_without_port - ValueError:
I wondered how `tests/plugins/dblog.py` worked, since it is supposed to fail
unless the `dblog-file` arg is set:
```
@plugin.init()
def init(configuration, options, plugin):
if not plugin.get_option('dblog-file'):
raise RpcError("No dblog-file specified")
```
But it was set to "null". That's because 'None' in python is turned into a literal
JSON "null", and we take that as the default value.
We also cleanup the popt->description double-assignment (a leftover
from when this was optional).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Fixed: plugins: setting the default value of a parameter to `null` is the same as not setting it (pyln plugins did this!).
The one to stderr is fine, the log one gets corrupted, like so:
```
2022-07-24T07:20:08.6250702Z lightningd-2 2022-07-24T06:49:19.494Z **BROKEN** lightningd: Plugin '????UH??SH??8H?}?H?u?H?U?H?M?H?M?H?E?H?????' returned an invalid response to the db_write hook: (F???U
```
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We were waiting too long for the reconnect to happen (60s default),
which caused this test to timeout.
When testing, let's speed up the reconnect.
L2 tried to reconnect but didn't have connection information in its
gossip -- is there a way to ask/save connection data from a node you're
making a channel with that doesn't rely on their node_announcement?
Most unexpected ones are still 1, but there are a few recognizable error codes
worth documenting.
Rename the HSM ones to put ERRCODE_ at the front, since we have non-HSM ones
too now.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
If you get the wrong hsm_secret, your node_id will change, and
peers won't know who you are, bitcoind will reject your transaction
signatures, and other madness.
Catch this as soon as it happens, by storing our node_id in the db.
Suggested-by: @cdecker, @fiatjaf
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Changed: Config: `lightningd` will refuse to start with the wrong node_id (i.e. hsm_secret changes).
Returning an warning message when the pub key is not specified and there is no node in the graph.
We try to help people that use core lightning as a signer and nothings else.
Changelog-Deprecated: rpc: checkmessage return an error when the pubkey is not specified and it is unknown in the network graph.
The only places which should call try_reconnect now are the "connect"
command, and the disconnect path when it decides there's still an
active channel.
This introduces one subtlety: if we disconnect when there's no active
channel, but then the subd makes one, we have to catch that case!
This temporarily reverts "slow" reconnections to fast ones: see next
patch.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Connectd already does this when we *receive* an error or warning, but
now do it on send. This causes some slight behavior change: we don't
disconnect when we close a channel, for example (our behaviour here
has been inconsistent across versions, depending on the code).
When connectd is told to disconnect, it now does so immediately, and
doesn't wait for subds to drain etc. That simplifies the manual
disconnect case, which now cleans up as it would from any other
disconnection when connectd says it's disconnected.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Give them time to process any final messages! If there's a reconnect,
then we need to clean them up immediately of course.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This allows us to detect when lightningd hasn't seen our latest
disconnect/reconnect; in particular, we would hit the following pattern:
1. lightningd says to connect a subd.
2. connectd disconnects and reconnects.
3. connectd reads message, connects subd.
4. lightningd reads disconnect and reconnect, sends msg to connect to subd again.
5. connectd asserts because subd is alreacy connected.
This way connectd can tell if lightningd is talking about the previous
connection, and ignoere it.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Before this patch:
1. connectd says it's connected (peer_connected)
2. we tell connectd we want to talk about each channel (peer_make_active)
3. connectd gives us an fd for each channel, and we connect it to a subd (peer_active)
4. OR, connectd says it sent something about a channel we didn't tell it about, with an fd (peer_active)
Now:
1. connectd says it's connected (peer_connected)
2. we start all appropriate subds and tell connectd to what channels/fds (peer_connect_subd).
3. if connectd says it sent something about a channel we didn't tell it about, we either tell
it to hang up (peer_final_msg), or connect a new opening daemon (peer_connect_subd).
This is the minimal-size patch, which is why we create socket pairs in
so many places to use the existing functions. Many cleanups are
possible, since the new flow is so simple.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
First, connectd tells us the peer has connected, and we call the connected hook,
and if it says it's fine, we are actually connected and we fire off notifications.
Of course, we could be disconnected while in the connected hook, and that would
mean we tell people about a connection which is no longer current.
Make this clear with a tristate: if we're not marked disconnected by
the time the hooks finish, we're good. It also gives us a cleaner
"connect" command return when we connected but disconnected before
processing.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We used to not return from "connect" until we had connected all the subds,
which introduced more races if something went wrong.
Remove this workaround, since we're going to rework this logic entirely.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We don't have to put aside a peer which is reconnecting and wait for
lightningd to remove the old peer, we can now simply free the old
and add the new.
Fixes: #5240
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We allow connectd to tell us a peer has gone away, but now we need
to make sure we don't double-spiderman and tell it to disconnect peer.
This is particularly harmful on reconnect: it (will soon) tell us the
old connection is gone, ready to tell us the new peer has connected.
We would tell it to disconnect the peer, which throws away the new
connection!
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This is redundant now, since connectd only sends us this once we tell
it it's OK, but that's changing, so clean up now. This means that
connectd will be able to make *unsolicited* closes, if it needs to.
We share logic with peer_please_disconnect.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
It's directly a product of "does it have a current owner subdaemon"
and "does that subdaemon talk to peers", so create a helper function
which just evaluates that instead.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
It's available in listpeers() if you want to see it, otherwise it's not
really something users want to see in the normal course of operation.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Rusty Russell
Christian Decker
Greg Sanders
Michael Schmoock
fiatjaf
niftynei
adi2011
Vincenzo Palazzo