Commit Graph

114 Commits

Author SHA1 Message Date
Rusty Russell 8b62e2584f connectd: remove enable-autotor-v2-mode option
Changelog-Removed: lightningd: removed `enable-autotor-v2-mode` option (deprecated v0.10.1)
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2022-05-18 10:15:36 +09:30
Rusty Russell 37e8d2fb0f connectd: disable advertizement of WEBSOCKET addresses.
This seems to prevent broad propagation, due to LND not allowing it.  See
	https://github.com/lightningnetwork/lnd/issues/6432

We still announce it if you disable deprecated-apis, so tests still work,
and hopefully we can enable it in future.

Fixes: #5196
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-EXPERIMENTAL: Protocol: disabled websocket announcement due to LND propagation issues
2022-04-21 06:13:55 +09:30
Rusty Russell 9bddfc2048 connectd: take dev-suppress-gossip from gossipd.
Gossipd didn't actually suppress all gossip, resulting in a flake!
Doing it in connectd now makes much more sense.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2022-03-31 19:38:05 +10:30
Rusty Russell ea7120a313 lightningd: add --dev-no-ping-timer to avoid ping response timeouts.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2022-03-31 13:40:27 +10:30
Rusty Russell 4e8239fcfe lightningd: don't tell connectd to discard peer unless no subds left.
Otherwise it waits for subds to exit, but they don't.  Plus, the others
may still be talking!

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2022-03-23 13:20:12 +10:30
Rusty Russell 21e1d68e3b lightningd: remove (most) functions to search channels by status.
This is generally verboten now, since there can be multiple.  There are a
few exceptions:

1. We sometimes want to know if there are *any* active channels.
2. Some dev commands still take peer id when they mean channel_id.
3. We still allow peer id when it's fully determined.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Changed: JSON-RPC: `close` by peer id will fail if there is more than one live channel (use `channel_id` or `short_channel_id` as id arg).
2022-03-23 13:20:12 +10:30
Rusty Russell b3438e9bba lightningd: associate connect commands with peer, not channel.
Sure, we want to connect (usually) because of an active channel, but
it's not specific to the channel itself.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2022-03-23 13:20:12 +10:30
Rusty Russell 2424b7dea8 connectd: hold peer until we're interested.
Either because lightningd tells us it wants to talk, or because the peer
says something about a channel.

We also introduce a behavior change: we disconnect after a failed open.
We might want to modify this later, but we it's a side-effect of openingd
not holding onto idle connections.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2022-03-23 13:20:12 +10:30
Rusty Russell deecedb033 connectd: tell lightningd when disconnect is complete.
This avoids races in our tests where we assume it's sync (and is kind
of nicer).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2022-03-23 13:20:12 +10:30
Rusty Russell 6cc9f37cab connectd: handle connect vs closing race better.
We would return success from connect even though the peer was closing;
this is technically correct but fairly undesirable.  Better is to pass
every connect attempt to connectd, and have it block if the peer is
exiting (and retry), otherwise tell us it's already connected.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2022-03-23 13:20:12 +10:30
Rusty Russell 16e9ba0361 connectd: fix confusing names.
The message from lightningd simply acknowleges that we are allowed to
discard the peer (because no subdaemons are talking to it anymore).
This difference becomes more stark once connectd holds on to idle
peers.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2022-03-23 13:20:12 +10:30
Rusty Russell b99c04e605 lightningd: add explicit "connected" flag.
We currently intuit this by whether there's a subdaemon owning it.
But we're about to change the rules and allow connectd to hold idle
connections, so we need an explicit flag.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2022-03-23 13:20:12 +10:30
Michael Schmoock e92176248e chore: fix typo announcable -> announceable
"announcable" is a common misspelling of "announceable", see:

https://en.wiktionary.org/wiki/announcable
2022-03-11 16:42:45 +10:30
Rusty Russell b5a1715c2b connectd: also fail without a scary backtrace when listen fails.
For example, if you do:

```
./lightningd/lightningd --network=regtest --experimental-websocket-port=19846
```

Then you're trying to reuse the normal port as the websocket port, but this
only fails at *listen* time, when we activate connectd.  Catch this too.

Fixes incorrect fatal() message, too.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2022-03-05 15:48:03 +10:30
Rusty Russell f1ed373c97 connectd: be more graceful when we an address is in use.
Aditya had this issue due to a config line, and the result was hard
to diagnose even for me.

It's now:

```
$ ./lightningd/lightningd --network=regtest --addr=:18444
2022-02-26T05:01:28.705Z **BROKEN** connectd: Failed to bind socket for 0.0.0.0:18444: Address already in use
```

Whereas before it doesn't even give the address it's trying to bind:

```
rusty@rusty-XPS-13-9370:~/devel/cvs/lightning (master)$ ./lightningd/lightningd --network=regtest --addr=:18444
lightning_connectd: Failed to bind on 2 socket: Address already in use (version v0.10.2-331-g86b83e4)
0x558a8b8d9a12 send_backtrace
	common/daemon.c:33
0x558a8b8e91e1 status_failed
	common/status.c:221
0x558a8b8c8e4f make_listen_fd
	connectd/connectd.c:1090
0x558a8b8c8f55 handle_wireaddr_listen
	connectd/connectd.c:1129
0x558a8b8c993d setup_listeners
	connectd/connectd.c:1312
0x558a8b8ca344 connect_init
	connectd/connectd.c:1517
0x558a8b8cbb57 recv_req
	connectd/connectd.c:1896
0x558a8b8d9f9f handle_read
	common/daemon_conn.c:31
0x558a8b9247c1 next_plan
	ccan/ccan/io/io.c:59
0x558a8b9253c9 do_plan
	ccan/ccan/io/io.c:407
0x558a8b92540b io_ready
	ccan/ccan/io/io.c:417
0x558a8b9276fe io_loop
	ccan/ccan/io/poll.c:453
0x558a8b8cbf36 main
	connectd/connectd.c:2033
0x7fe4d02940b2 ???
	???:0
0x558a8b8c285d ???
	???:0
0xffffffffffffffff ???
	???:0
2022-02-26T05:02:27.547Z **BROKEN** connectd: Failed to bind on 2 socket: Address already in use (version v0.10.2-331-g86b83e4)
2022-02-26T05:02:27.547Z **BROKEN** connectd: backtrace: common/daemon.c:38 (send_backtrace) 0x558a8b8d9a68
2022-02-26T05:02:27.547Z **BROKEN** connectd: backtrace: common/status.c:221 (status_failed) 0x558a8b8e91e1
2022-02-26T05:02:27.547Z **BROKEN** connectd: backtrace: connectd/connectd.c:1090 (make_listen_fd) 0x558a8b8c8e4f
2022-02-26T05:02:27.548Z **BROKEN** connectd: backtrace: connectd/connectd.c:1129 (handle_wireaddr_listen) 0x558a8b8c8f55
2022-02-26T05:02:27.548Z **BROKEN** connectd: backtrace: connectd/connectd.c:1312 (setup_listeners) 0x558a8b8c993d
2022-02-26T05:02:27.548Z **BROKEN** connectd: backtrace: connectd/connectd.c:1517 (connect_init) 0x558a8b8ca344
2022-02-26T05:02:27.548Z **BROKEN** connectd: backtrace: connectd/connectd.c:1896 (recv_req) 0x558a8b8cbb57
2022-02-26T05:02:27.548Z **BROKEN** connectd: backtrace: common/daemon_conn.c:31 (handle_read) 0x558a8b8d9f9f
2022-02-26T05:02:27.548Z **BROKEN** connectd: backtrace: ccan/ccan/io/io.c:59 (next_plan) 0x558a8b9247c1
2022-02-26T05:02:27.548Z **BROKEN** connectd: backtrace: ccan/ccan/io/io.c:407 (do_plan) 0x558a8b9253c9
2022-02-26T05:02:27.548Z **BROKEN** connectd: backtrace: ccan/ccan/io/io.c:417 (io_ready) 0x558a8b92540b
2022-02-26T05:02:27.548Z **BROKEN** connectd: backtrace: ccan/ccan/io/poll.c:453 (io_loop) 0x558a8b9276fe
2022-02-26T05:02:27.548Z **BROKEN** connectd: backtrace: connectd/connectd.c:2033 (main) 0x558a8b8cbf36
2022-02-26T05:02:27.548Z **BROKEN** connectd: backtrace: (null):0 ((null)) 0x7fe4d02940b2
2022-02-26T05:02:27.548Z **BROKEN** connectd: backtrace: (null):0 ((null)) 0x558a8b8c285d
2022-02-26T05:02:27.548Z **BROKEN** connectd: backtrace: (null):0 ((null)) 0xffffffffffffffff
2022-02-26T05:02:27.548Z **BROKEN** connectd: STATUS_FAIL_INTERNAL_ERROR: Failed to bind on 2 socket: Address already in use
lightningd: connectd failed (exit status 242), exiting.
```

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2022-03-05 15:48:03 +10:30
Rusty Russell ca08f27d54 connectd: remove second gossip fd.
Now we only send and receive gossip messages on this fd.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2022-02-08 11:15:52 +10:30
Rusty Russell 3c5d27e3e9 subdaemons: remove gossipd fd from per-peer daemons.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2022-02-08 11:15:52 +10:30
Rusty Russell 1c71c9849b connectd: handle custom messages.
This is neater than what we had before, and slightly more general.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Changed: JSON_RPC: `sendcustommsg` now works with any connected peer, even when shutting down a channel.
2022-02-08 11:15:52 +10:30
Rusty Russell 8782d39476 connectd: handle onion messages.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2022-02-08 11:15:52 +10:30
Rusty Russell 50eccb6a12 connectd: handle pings and pongs.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Changed: JSON_RPC: `ping` now works with connected peers, even without a channel.
2022-02-08 11:15:52 +10:30
Rusty Russell bba468a51c connectd: temporarily have two fds to gossipd.
We want to stream gossip through this, but currently connectd treats the
fd as synchronous.  While we work on getting rid of that, it's easiest to
have two fds.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2022-02-08 11:15:52 +10:30
Rusty Russell 39c93ee6e5 connectd: get addresses from lightningd, not gossipd.
It's weird to have connectd ask gossipd, when lightningd can just do it
and hand all the addresses together.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2022-01-20 15:24:06 +10:30
Rusty Russell 6115ed02e8 subdaemons: don't stream gossip_store at all.
We now let gossipd do it.

This also means there's nothing left in 'struct per_peer_state' to
send across the wire (the fds are sent separately), so that gets
removed from wire messages too.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2022-01-20 15:24:06 +10:30
Rusty Russell 029d65cf2e connectd: serve gossip_store file for the peer.
We actually intercept the gossip_timestamp_filter, so the gossip_store
mechanism inside the per-peer daemon never kicks off for normal connections.

The gossipwith tool doesn't set OPT_GOSSIP_QUERIES, so it gets both, but
that only effects one place.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2022-01-20 15:24:06 +10:30
Rusty Russell 7a514112ec connectd: do dev_disconnect logic.
As connectd handles more packets itself, or diverts them to/from gossipd,
it's the only place we can implement the dev_disconnect logic.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2022-01-20 15:24:06 +10:30
Rusty Russell 967ffbfbcb global: use tal_dup_or_null().
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2021-12-30 14:36:55 +10:30
Rusty Russell 4ffda340d3 check: make sure all files outside contrib/ include "config.h" first.
And turn "" includes into full-path (which makes it easier to put
config.h first, and finds some cases check-includes.sh missed
previously).

config.h sets _GNU_SOURCE which really needs to be done before any
'#includes': we mainly got away with it with glibc, but other platforms
like Alpine may have stricter requirements.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2021-12-06 10:05:39 +10:30
Rusty Russell ed6eaf9171 experimental-websocket-port: option to create a WebSocket port.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2021-10-22 11:56:30 +02:00
Rusty Russell f78184ce46 connectd: listen on ports for which we should spawn a proxy.
If the port is set, we spawn it (lightning_websocketd) on any
connection to that port.  That means websocketd is a per-peer daemon,
but it means every other daemon uses the connection normally (it's
just actually talking to websocketd instead of the client directly).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2021-10-22 11:56:30 +02:00
Rusty Russell 7401b26824 cleanup: remove unneeded includes in C files.
Before:
 Ten builds, laptop -j5, no ccache:

```
real	0m36.686000-38.956000(38.608+/-0.65)s
user	2m32.864000-42.253000(40.7545+/-2.7)s
sys	0m16.618000-18.316000(17.8531+/-0.48)s
```

 Ten builds, laptop -j5, ccache (warm):

```
real	0m8.212000-8.577000(8.39989+/-0.13)s
user	0m12.731000-13.212000(12.9751+/-0.17)s
sys	0m3.697000-3.902000(3.83722+/-0.064)s
```

After:
 Ten builds, laptop -j5, no ccache: 8% faster

```
real	0m33.802000-35.773000(35.468+/-0.54)s
user	2m19.073000-27.754000(26.2542+/-2.3)s
sys	0m15.784000-17.173000(16.7165+/-0.37)s
```

 Ten builds, laptop -j5, ccache (warm): 1% faster

```
real	0m8.200000-8.485000(8.30138+/-0.097)s
user	0m12.485000-13.100000(12.7344+/-0.19)s
sys	0m3.702000-3.889000(3.78787+/-0.056)s
```

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2021-09-17 09:43:22 +09:30
Rusty Russell ea30c34d82 cleanup: remove unneeded includes in header files.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2021-09-17 09:43:22 +09:30
Michael Schmoock 24ea498350 cleanup: rename use_proxy_always to always_use_proxy to match cfg
This renames all occurences of use_proxy_always to always_use_proxy
to keep it inline with config values. This was a bit confusing.

Only significant change is that the payload in the plugins init
requests also contained the old name. No plugin currently seems to make
use of this variable yet. The old name 'use_proxy_always' is added when
deprecated APIs is enabled.

Changelog-Deprecated: Plugins: Renames plugin init 'use_proxy_always' to 'always_use_proxy'
2021-08-23 14:43:40 +09:30
Rusty Russell 7cffea10ce connectd: new command to make us send message and close.
Currently we abuse openingd and dualopend to do this, but connectd already
has the ability to talk to peers, so it's more efficient.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2021-06-03 16:16:34 +09:30
Antoine Poinsot fe8074c8c3 Refuse to parse v2 onion addresses without deprecated_apis
Tor v2 hidden services have been deprecated for a while:
https://blog.torproject.org/v2-deprecation-timeline .

This prevents user from being able to set them in the configuration
and to connect to them while still letting us be able to parse them
for gossip.

Changelog-Deprecated: lightningd: v2 Tor addresses.  Use v3.  See https://blog.torproject.org/v2-deprecation-timeline.

Signed-off-by: Antoine Poinsot <darosior@protonmail.com>
2021-05-24 20:22:45 +09:30
niftynei 71a4a2e31c df: rework closing logic
Trying to put all the disconnect logic into the same path was a dumb
idea. If you asked to reconnect but passed in an 'unsaved' channel, we
would not call the 'reconnect' code.

Instead, we make a differentiation between "unsaved" channels
(ones that we haven't received commitment tx for) and handle the
disconnect for these separate from where we want to do a reconnect.
2021-05-12 11:25:41 +09:30
Rusty Russell 006300ab96 lightningd: set "direction" correctly for connect which is already connected.
This means remembering the connection direction.  We also use the address to try
to reconnect, which we shouldn't bother with if they connect to us.

For peers from the database, we currently always save the addr: we shouldn't really
do this if they connected to us, since it's not useful for reconnecting (we don't
show the addr in JSON reply to listpeers unless we're connected, so it's only an
internal issue).  This is left for future work.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2021-03-26 13:22:33 +10:30
Rusty Russell b0d6996ed6 lightningd: get connection direction from connectd.
This matters: if we connected, the address is probably usable for future connections.
But if they connected, the port is probably not (but the IP address may be).

Changelog-Added: JSON-RPC: `connect` returns "direction" ("in": they iniatated, or "out": we initiated)
Changelog-Added: plugins: `peer_connected` hook and `connect` notifications have "direction" field.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2021-03-26 13:22:33 +10:30
niftynei 3e8f575f9e dual-funding: convert to runtime flag, --experimental-dual-fund
You can now activate dual-funded channels using the
`--experimental-dual-fund` flag

Changelog-Changed: Config: `--experimental-dual-fund` runtime flag will enable dual-funded protocol on this node
2021-03-25 20:05:11 +10:30
Rusty Russell 6c9d9ee9a2 connect: return address we actually connected to.
Otherwise, we might find an address other than the one given and
the user might think that address worked.

Fixes: #4185
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Added: JSON-RPC: `connect` returns `address` it actually connected to
2021-03-17 08:38:08 +10:30
niftynei 8cc2919884 connectd: clean up the channel stuffs when we get a reconnect
If they've disconnected/reconnected we need to terminate all the
inflight stuff, plus go ahead and call 'disconnect' plugin trigger etc.
2021-03-06 15:03:56 +10:30
niftynei 07153bff6a df: cleanup error handling on lightningd side
Make existing methods understand how unsaved channels work, re-work
errors so that we handle everything appropriately
2021-03-06 15:03:56 +10:30
niftynei da81d4bced channel: skip unsaved channels
Now that "peer->channels" contains `unsaved` channels, skip overthem
where appropriate
2021-03-03 16:19:04 -06:00
niftynei b9f867b1dd connectd: check for re-connected unsaved channels 2021-03-03 16:19:04 -06:00
Rusty Russell 7f2b332021 connectd: implement connection timeout (60 seconds).
This is simple, and we now can multifundchannel to every node on testnet
(one simply hangs once we connect).

Changelog-Fixed: Protocol: We now hang up if peer doesn't respond to init message after 60 seconds.
2020-09-11 21:27:45 +09:30
niftynei 6607f1d629 openingd: pull out common code, rename some things
We're going to reuse all this code for dualopend, which is coming soon.
2020-09-09 19:54:20 +09:30
Rusty Russell c34c055d82 Makefile: use completely separate spec-derived files for EXPERIMENTAL_FEATURES
This avoids overwriting the ones in git, and generally makes things neater.

We have convenience headers wire/peer_wire.h and wire/onion_wire.h to
avoid most #ifdefs: simply include those.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2020-09-08 09:42:00 +09:30
Rusty Russell 8150d28575 Makefile: use generic rules to make spec-derived sources.
Now we use the same Makefile rules for all CSV->C generation.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2020-08-31 21:33:26 -05:00
Rusty Russell 398b4806b9 connectd: convert to new wire generation style.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2020-08-25 12:53:13 +09:30
Rusty Russell 1702c7a69a hsmd: convert to new wire generation style.
Note that other directories were explicitly depending on the generated
file, instead of relying on their (already existing) dependency on 
$(LIGHTNINGD_HSM_CLIENT_OBJS), so we remove that.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2020-08-25 12:53:13 +09:30
Rusty Russell 2f1502abf4 cleanup: make 'u8 *features' and 'struct feature_set *fset' more explicit.
It's almost always "their_features" and "our_features" respectively, so
make those names clear.

Suggested-by: @cdecker
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2020-04-03 13:13:21 +10:30