We usually have access to `ld`, so avoid the global.
The only place generic code needs it is for the json command struct,
and that already has accessors: add one for libplugin and lightningd
to tell it if deprecated apis are OK.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
For anchors, we need some sats sitting around in case we need to CPFP
a close.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Added: Config: `min-emergency-msat` setting for (currently experimental!) anchor channels, to keep funds in reserve for forced closes.
Now we wire in the code which gathers configvars and parses from there;
lightningd keeps the array of configuration variables for future use.
Note that lightning-cli also needs to read the config, but it has its
own options (including short ones!) and doesn't want to use this
configvar mechanism, so we have a different API for that now.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Note that this actually changes listconfigs output for three msat
fields, which were not changed with the great msat merge. Since
listconfigs isn't actually used by grpc, and the values are always a
little vague, I simply changed this.
Changelog-Fixed: JSON-RPC: `listconfigs` `htlc-minimum-msat`, `htlc-maximum-msat` and `max-dust-htlc-exposure-msat` fields are now numbers, not strings.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
And no longer insist on opt_quiesce.
Changelog-EXPERIMENTAL: Config: `--experimental-upgrade-protocol` enables simple channel upgrades.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Turns out the two bcli replacements I checked (`sauron` and
`trustedcoin`) don't even implement this, and the multiplier makes
more sense in lightningd, especially as we move to bcli just providing
raw feerate estimates.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Importantly, the code in jsonrpc.c which actually does the io_break:
```
/* Once the stop_conn conn is drained, we can shut down. */
if (jcon->ld->stop_conn == conn && jcon->ld->state == LD_STATE_RUNNING) {
/* Return us to toplevel lightningd.c */
log_debug(jcon->ld->log, "io_break: %s", __func__);
io_break(jcon->ld);
```
By having the state not set until later, we avoid running this. Of course,
we need to avoid calling the main loop when we get there, if we've already
been told to shutdown.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
It's needed as the db and wallet is being set up (db migrations), so
it's simpler this way to always use ld->bip32_base for the next patch.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Importantly, adds the version number at the *front* to help future
parsing.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Header from folded patch 'fix-hsm-check-pubkey.patch':
fixup! hsmd: capability addition: ability to check pubkeys.
In v0.11 (71f736678f) we changed lightningd to wait for gossipd to
acknowledge blocks before updating blockheight: this resolved a problem
which lnprototest had where it wanted to know when we'd fully digested
a block.
However, it broke the syncing case: until then we don't even tell
gossipd, so this stayed at zero. We should use the current blockheight
for that corner case!
Fixes: #5894
Changelog-Fixed: JSON-RPC: `getinfo` `blockheight` no longer sits on 0 while we sync with bitcoind the first time.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
In various circumstances we can start a reconnection while one is
already going on. These can stockpile if the node really is unreachable.
Reported-by: @whitslack
Fixes: #5654
Changelog-Fixed: lightningd: we no longer stack multiple reconnection attempts if connections fail.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This will give the user an option to set a custom port when using
discovered IPs for node_announcents. Without this, only the selected
networks default port can used.
Changelog-Added: Adds --announce-addr-discovered-port config option to set custom port for IP discovery.
This switch was not doing anything useful anymore.
We deprecate it anyways to notify the user about the new switch.
Changelog-Deprecated: The old --disable-ip-discovery config switch
This adds the option to explicitly enable ip-discovery, which maybe
helpful for example when a user wants TOR announced along with
discovered IPs to improve connectivity and have TOR just as a fallback.
Changelog-Added: Adds config switch 'announce-addr-discovered': on/off/auto
After connecting 100,000 peers with one channel each (not all at
once!), we see various places where we exhibit O(N^2) behaviour.
Fix these by keeping a map of id->peer instead of a simple
linked-list.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This broke BTCPayServer, so revert. I originally (accidentally!)
implemented this such that it broadcast both DNS and IP entries, but
Michael reported earlier that they still don't propagage well, so
simply suppress them.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Fixes: #5795
Changelog-Changeed: Config: `announce-addr-dns` needs to be set to *true* to put DNS names into node announcements, otherwise they are suppressed.
Changelog-Deprecated: Config: `announce-addr-dns` (currently defaults to `false`). This will default to `true` once enough of the network has upgraded to understand DNS entries.
The "path" is just a message to ourselves. This meets the minimal
requirement for bolt12 invoices: that there be a blinded path (at
least so we can use the path_id inside in place of "payment_secret").
We expose the method to make this path_id to a common routine: offers
will need this for generating more sophisticated paths.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We had a scheme where lightningd itself would put a per-node secret in
the blinded path, then we'd tell the caller when it was used. Then it
simply checks the alias to determine if the correct path was used.
But this doesn't work when we start to offer multiple blinded paths.
So go for a far simpler scheme, where the secret is generated (and
stored) by the caller, and hand it back to them.
We keep the split "with secret" or "without secret" API, since I'm
sure callers who don't care about the secret won't check that it
doesn't exist! And without that, someone can use a blinded path for a
different message and get a response which may reveal the node.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This is the one place where we hand point32 over the wire internally, so
remove it.
This is also our first hsm version change!
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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.
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 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?
I've wanted this for a while: the ability to log to multiple places
at once.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Changed: lightningd: `log-file` option specified multiple times opens multiple log files.
This adds config and commandline options for htlc_min_msat, htlc_max_msat and
announce_discovered_ip. The default is 0msat for htlc_min_msat, unlimited for
htlc_max_msat and enabled for announce_discovered_ip.
The announce_discovered_ip gets the disable commandline switch --disable-ip-discovery
Changelog-added: Config options for htlc_min_msat, htlc_max_msat and announce_discovered_ip.
I removed these prematurely: we *haven't* had a release since
introducing them!
This consists of reverting d15d629b8b
"plugins/fetchinvoice: remove obsolete string-based API." and
plugins/fetchinvoice: remove obsolete string-based
API. "onion_messages: remove obs2 support."
Some minor changes due to updated fromwire_tlv API since they
were removed, but not much.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-EXPERIMENTAL: REVERT: Removed backwards compat with onion messages from v0.10.1.
lightningd would race with the subd destructor to do the waitpid(),
resulting in UNUSUAL log messages, but also us missing if a plugin
was killed via a signal.
We can also get rid of the gratuitous waitpid() in test_subdaemons.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This loads up 20MB of plugins temporarily; we seem to be getting OOM
killed under CI and I wonder if this is contributing.
Doesn't significantly reduce runtime here, but I have lots of memory.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
To reduce the surface area of amount of a channel balance that can be
eaten up as htlc dust, we introduce a new config
'--max-dust-htlc-exposure-msat', which sets the max amount that any
channel's balance can be added as dust
Changelog-Added: config: new option --max-dust-htlc-exposure-msat, which limits the total amount of sats to be allowed as dust on a channel
We put this in reply paths, so we can tell if they are used. This lets us
avoid responding unless the correct reply path is used.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
After recent header files clean-up it was not possible to
build c-lightning 7401b2682. This patch fixes it both for
Alpine Linux and OpenBSD.
Proposed-by: nathanael <nathanael@dalliard.ch>
Changelog-None
That was quick!
We remove the 50% test, since the default is now to use quickclose.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Added: Protocol: We now perform quick-close if the peer supports it.
