Commit Graph

302 Commits

Author SHA1 Message Date
Christian Decker b7a56f0531 plugin: Gate the plugin subsystem with the --enable-plugins configure flag
Since we are planning to release a bug fix release, and the plugin
subsystem is not yet complete, it is better to make plugin support
opt-in while we continue testing.

Signed-off-by: Christian Decker <decker.christian@gmail.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-01-10 17:15:10 -08:00
Christian Decker 36e060aa60 init: Reap tested subdaemon processes to release OS resources
The processes that were used to test the subdaemon versions were not
reaped correctly keeping some resources bound.

Signed-off-by: Christian Decker <decker.christian@gmail.com>
2019-01-08 00:16:50 +00:00
William Casarin 4d9190aa47 lightningd: fix compile error on unused variable
Switch to write_all instead

Error on gcc 7.3.0:

lightningd/lightningd.c: In function ‘on_sigterm’:
lightningd/lightningd.c:587:9: error: ignoring return value of ‘write’, declared
  with attribute warn_unused_result [-Werror=unused-result]
         write(STDERR_FILENO, msg, strlen(msg));
         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Signed-off-by: William Casarin <jb55@jb55.com>
2019-01-02 01:29:14 +00:00
Mark Beckwith bcde9675e4 Handle SIGINT and SIGTERM for PID 1
Signed-off-by: Mark Beckwith <wythe@intrig.com>
2018-12-22 15:46:11 +01:00
Rusty Russell 31a375af53 lightningd: add runtime checking for all system-provided libs.
And I tested this by rolling my own libz; make indeed detects
the change and fixes it.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-12-14 05:36:34 +00:00
Rusty Russell 1368ac7f3c lightningd: only initialize plugins once we're ready for them to connect.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-12-10 09:15:48 +01:00
Rusty Russell d7e233e47d Move json and param core functionality into common, for plugins.
json_escaped.[ch], param.[ch] and jsonrpc_errors.h move from lightningd/
to common/.  Tests moved too.

We add a new 'common/json_tok.[ch]' for the common parameter parsing
routines which a plugin might want, taking them out of
lightningd/json.c (which now only contains the lightningd-specific
ones).

The rest is mainly fixing up includes.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-12-10 00:00:50 +00:00
Rusty Russell 6da213be31 ccan: update to get updated pipecmd.
Note that this changes the order of arguments to pipecmd to match the
documentation, so we fix all the callers!

Also make configure re-run when configurator changes.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-12-10 00:00:50 +00:00
Rusty Russell 6323cc1898 plugins: allow --dev-debugger=<pluginname>.
This currently just invokes GDB, but we could generalize it (though
pdb doesn't allow attaching to a running process, other python
debuggers seem to).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-12-10 00:00:50 +00:00
Christian Decker be7674ed6c plugin: Added .params.configuration to init call
This tells the plugin both the `lightning-dir` as well as the
`rpc-filename` to use to talk to `lightningd`. Prior to this they'd
had to guess.

Signed-off-by: Christian Decker <decker.christian@gmail.com>
2018-12-07 17:17:53 +01:00
Rusty Russell eb03b33655 plugins: add and install built-in plugin dir, add clear and disable options.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-12-05 01:22:55 +01:00
Christian Decker a71208b2a0 plugin: Remove added JSON-RPC methods if a plugin gets killed
Removes the method from the dispatch table, leaving a NULL entry
currently.

Signed-off-by: Christian Decker <@cdecker>
2018-12-02 22:55:47 +00:00
Christian Decker 3e1138951b plugin: Add pointer to jsonrpc so we can add new methods
Signed-off-by: Christian Decker <@cdecker>
2018-12-02 22:55:47 +00:00
Christian Decker 83775e7cea jsonrpc: Split the jsonrpc object creation from starting to listen
This is needed in order to be able to add methods while initializing
the plugins, but before actually moving to the config dir and starting
to listen.

Signed-off-by: Christian Decker <decker.christian@gmail.com>
2018-12-02 22:55:47 +00:00
Christian Decker 01c7bc5884 jsonrpc: Make an explicit jsonrpc struct
This wraps the listener, a separate log and the registered
commands. This is mainly needed once we dynamically add
sjson_command`s to the JSON-RPC.
2018-12-02 22:55:47 +00:00
Rusty Russell 5a81dbd783 common/daemon: enable/cleanup memleak in daemon_setup / daemon_shutdown.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-11-22 05:15:42 +00:00
Christian Decker b02861bfe1 plugin: Give each plugin their own log-prefix
There is no good naming just yet, so we just number them 1 to n.
2018-11-13 00:44:50 +01:00
Christian Decker e6ef675ea1 plugin: Send the configure request once we collected all options
This is the final step to get the plugins working. After parsing the
early options (including `--plugin`), then starting and asking the
plugins for options, and finally reading in the options we just
registered, we just need to assemble the options and send them over.

Signed-off-by: Christian Decker <@cdecker>
2018-11-13 00:44:50 +01:00
Christian Decker 10338983a6 plugin: Add logs to plugin and add method to kill a plugin
Also includes some sanity checks for the results returned by the
plugin, such as ensuring that the ID is as expected and that we have
either an error or a real result.
2018-11-13 00:44:50 +01:00
Christian Decker 8e83d43c39 opts: Split early from non-early args so plugins can register theirs
The idea is that `plugin` is an early arg that is parsed (from command
line or the config file). We can then start the plugins and have them
tell us about the options they'd like to add to the mix, before we
actually parse them.

Signed-off-by: Christian Decker <@cdecker>
2018-11-13 00:44:50 +01:00
Christian Decker d0de6e59c6 plugin: Start each plugin and setup the connection to it
Mostly copied from bitcoind.c
2018-11-13 00:44:50 +01:00
Christian Decker 59e37c12cd plugin: Add plugins to lightningd and register arguments 2018-11-13 00:44:50 +01:00
Rusty Russell 305795b01e common/json: move JSON creation routines into lightningd/
It's the only user of them, and it's going to get optimized.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

gossip.pydiff --git a/common/test/run-json.c b/common/test/run-json.c
index 956fdda35..db52d6b01 100644
2018-10-19 22:02:11 +00:00
Rusty Russell 96f05549b2 common/utils.h: add tal_arr_expand helper.
We do this a lot, and had boutique helpers in various places.  So add
a more generic one; for convenience it returns a pointer to the new
end element.

I prefer the name tal_arr_expand to tal_arr_append, since it's up to
the caller to populate the new array entry.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-09-27 22:57:19 +02:00
Rusty Russell 704d30edce ping: complete JSON RPC ping commands even if one ping gets no response.
We would never complete further ping commands if we had < responses
than pings.  Oops.

Fixes: #1928
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-09-14 22:11:23 +02:00
Rusty Russell bdb8416446 lightningd: split pidfile handling.
We want to try it before --daemon, in case we error, but we don't know
the pid yet, so we split into 'lock' and 'write'.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-09-14 21:19:50 +02:00
Christian Decker d9ea2e6b45 master: Move JSON-RPC setup below PID-file creation
If we run two daemons on the same directory we'd be getting the failure from
trying to listen to the same file before we'd hit the pid-file error, which was
causing confusion.
2018-09-14 21:19:50 +02:00
Rusty Russell f2e085778c lightningd: more comment fixes.
Suggested-by: @practicalswift and @cdecker.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-09-03 05:01:40 +00:00
Rusty Russell dfc2a6b873 More documentation changes.
Documentation changes:
1. Lots of extra detail suggested by @renepickhardt.
2. typo fixes from @practicalswift.
3. A section on 'const' usage.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-09-03 05:01:40 +00:00
Rusty Russell 76f116daf1 lightningd: minor cleanups
Code changes:
1. Expose daemon_poll() so lightningd can call it directly, which avoids us
   having store a global and document it.
2. Remove the (undocumented, unused, forgotten) --rpc-file="" option to disable
   JSON RPC.
3. Move the ickiness of finding the executable path into subd.c, so it doesn't
   distract from lightningd.c overview.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-09-03 05:01:40 +00:00
Rusty Russell 8bc845d7b6 lightningd: inline overview documentation (part 1 of 8).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-09-03 05:01:40 +00:00
Rusty Russell 168bec0974 lightningd: move channel/peer/htlc load into own function.
Also, wallet has no business wiring up HTLCs; move that code to
peer_htlcs.c.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-09-03 05:01:40 +00:00
Rusty Russell 3e53a63cf2 wallet: do wallet_invoice init during preparation.
We have a transaction anyway, and it's simpler.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-09-03 05:01:40 +00:00
Rusty Russell 2af94f1817 chaintopology: remove redundant wallet pointer.
We already have access via the ld object, and we initialized this one
twice anyway.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-09-03 05:01:40 +00:00
Rusty Russell c3ec5fc267 lightningd: remove gratuitous SIG_IGN: daemon_setup() does it already.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-09-03 05:01:40 +00:00
Rusty Russell c33c971478 lightningd: rename 'daemons' to 'subdaemons'.
We're a daemon.  They're subdaemons.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-09-03 05:01:40 +00:00
Rusty Russell 1e91523663 lightningd: remove unnecessary globals.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-09-03 05:01:40 +00:00
Rusty Russell 94da5c9bd4 lightningd: clean up tmpctx on exit before freeing ld.
Fixes: #1866
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-08-30 16:34:11 +02:00
Rusty Russell 8733015836 memleak: don't require a root pointer.
We can just track everything from NULL (the ultimate parent) down.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-08-24 19:54:32 +02:00
Rusty Russell 12a39b8a79 lightningd: fix backtraces in memleak detection.
We were using a *different* backtrace_state var, which was always NULL.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-08-24 19:54:32 +02:00
Rusty Russell 50f5eb34b4 openingd: take peer before we're opening, wait for explicit funding msg.
Prior to this, lightningd would hand uninteresting peers back to connectd,
which would then return it to lightningd if it sent a non-gossip msg,
or if lightningd asked it to release the peer.

Now connectd hands the peer to lightningd once we've done the init
handshake, which hands it off to openingd.

This is a deep structural change, so we do the minimum here and cleanup
in the following patches.

Lightningd:
1. Remove peer_nongossip handling from connect_control and peer_control.
2. Remove list of outstanding fundchannel command; it was only needed to
   find the race between us asking connectd to release the peer and it
   reconnecting.
3. We can no longer tell if the remote end has started trying to fund a
   channel (until it has succeeded): it's very transitory anyway so not
   worth fixing.
4. We now always have a struct peer, and allocate an uncommitted_channel
   for it, though it may never be used if neither end funds a channel.
5. We start funding on messages for openingd: we can get a funder_reply
   or a fundee, or an error in response to our request to fund a channel.
   so we handle all of them.
6. A new peer_start_openingd() is called after connectd hands us a peer.
7. json_fund_channel just looks through local peers; there are none
   hidden in connectd any more.
8. We sometimes start a new openingd just to send an error message.

Openingd:
1. We always have information we need to accept them funding a channel (in
   the init message).
2. We have to listen for three fds: peer, gossip and master, so we opencode
   the poll.
3. We have an explicit message to start trying to fund a channel.
4. We can be told to send a message in our init message.

Testing:
1. We don't handle some things gracefully yet, so two tests are disabled.
2. 'hand_back_peer .*: now local again' from connectd is no longer a message,
   openingd says 'Handed peer, entering loop' once its managing it.
3. peer['state'] used to be set to 'GOSSIPING' (otherwise this field doesn't
   exist; 'state' is now per-channel.  It doesn't exist at all now.
4. Some tests now need to turn on IO logging in openingd, not connectd.
5. There's a gap between connecting on one node and having connectd on
   the peer hand over the connection to openingd.  Our tests sometimes
   checked getpeers() on the peer, and didn't see anything, so line_graph
   needed updating.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-08-09 19:44:27 +02:00
Rusty Russell c05bc7c8ab lightningd: don't try to delete peer from db on shutdown if it's opening.
Fortunately, we hit the assert in wallet_peer_delete() if this happens,
since there are still active channels.

This latent bug becomes far more likely in followup patches, where
openingd is used for idle peers.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-08-05 02:03:58 +00:00
Christian Decker d6048de100 json-rpc: Shutdown the JSON-RPC in the context of a DB transaction
This needs to be done separately from the rest of the daemon since we can
otherwise not make sure that it happens before the DB is freed and we might
still need the DN, and be running in a DB transaction, for some destructors to
run.
2018-07-26 19:14:56 +02:00
Rusty Russell 3d3d2ef9af gossipd: remove connectd functionality, enable connectd.
This patch guts gossipd of all peer-related functionality, and hands
all the peer-related requests to channeld instead.

gossipd now gets the final announcable addresses in its init msg, since
it doesn't handle socket binding any more.

lightningd now actually starts connectd, and activates it.  The init
messages for both gossipd and connectd still contain redundant fields
which need cleaning up.

There are shims to handle the fact that connectd's wire messages are
still (mostly) gossipd messages.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-07-25 02:13:52 +00:00
Rusty Russell 92d66a5451 gossipd: take connectd fd on initialization.
connectd has a dedicated fd to gossipd, so it can ask for a new gossip_fd
for a peer.

gossipd has a standalone routine to create a remote peer (this will
eventually be the only way gossipd creates a new peer).

For now lightningd creates a socketpair but doesn't run connectd, so
gossipd never sees any requests on this fd.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-07-25 02:13:52 +00:00
Rusty Russell eab83ca79b connectd: new daemon to handle connections.
This is just copying most of gossipd/gossip.c into connectd/connect.c.
It shares the same wire format as gossipd during transition, and changes
are deliberately minimal.

It also has an additional message 'connect_reconnected' which it sends
to the master daemon to tell it to kill a peer; gossipd relied on
closing the gossipfd to do this, but connectd doesn't maintain an fd
with remote peers.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-07-25 02:13:52 +00:00
Rusty Russell 28c3706f87 hsmd: fix missing status messages.
I crashed the HSMD, and it gave no output at all.  That's because we
were only reading the status fd when we were waiting for a reply.

Fix this by using a separate request fd and status fd, which also means
that hsm_sync_read() is no longer required.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-07-17 12:32:00 +02:00
arowser 97118c558e add --conf parameter 2018-07-15 09:45:55 +00:00
Christian Decker 2415f48723 topo: Tell chain_topology about the min and max block height
Signed-off-by: Christian Decker <decker.christian@gmail.com>
2018-06-06 03:30:02 +00:00
Christian Decker 024dca0fff wallet: Return both min and max block heights
Signed-off-by: Christian Decker <decker.christian@gmail.com>
2018-06-06 03:30:02 +00:00
ZmnSCPxj e95143af9a options: Add --dev-max-funding-unconfirmed-blocks.
Maximum number of blocks where funding tx is unconfirmed,
after which if we are the fundee, we forget the channel.
2018-05-23 14:37:32 -07:00
ZmnSCPxj 097a8e72d1 channel_control: Forget if unconfirmed for a long time and we are fundee.
We should forget this as it is a potential DoS if we remember every
funding txid that an attacker gave in a `funding_created` but never
broadcasted.
2018-05-23 14:37:32 -07:00
Rusty Russell 8739b4cbe8 lighningd: Remove --debug-subdaemon-io.
We can use SIGUSR1, even in non-developer builds.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-05-20 02:32:42 +00:00
Rusty Russell c8cc8fd83f option cleanup: --dev-bitcoind-poll
Make --bitcoind-poll a dev option.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-05-20 02:32:42 +00:00
Rusty Russell 89c76a5a78 Move always-use-proxy auto-override to master daemon.
This means it will effect connect commands too (though it's too
late to stop DNS lookups caused by commandline options).

We also warn that this is one case where we allow forcing through Tor
without a proxy set: it just means all connections will fail.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-05-10 02:28:44 +00:00
Rusty Russell 1106c40217 tor: add new 'autotor:' address option.
This takes the Tor service address in the same option, rather than using
a separate one.  Gossipd now digests this like any other type.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-05-10 02:28:44 +00:00
Rusty Russell a8c0bca6a8 gossipd: take over negotiation of autogenerated Tor addresses.
For the moment, this is a straight handing of current parameters through
from master to the gossip daemon.  Next we'll change that.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-05-10 02:28:44 +00:00
Rusty Russell c3ccc14f19 Tor: remove --tor prefix from SOCKS5 options.
It's usually for Tor, but we can use a socks5 proxy without it.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-05-10 02:28:44 +00:00
Rusty Russell 11db7ca9e6 options: use NULL for unset Tor settings.
Rename tor_proxyaddrs and tor_serviceaddrs to tor_proxyaddr and tor_serviceaddr:
the 's' at the end suggests that there can be more than one.

Make them NULL or non-NULL, rather than using all-zero if unset.

Hand them the same way to gossipd; it's a bit of a hack since we don't
have optional fields, so we use a counter which is always 0 or 1.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-05-10 02:28:44 +00:00
Rusty Russell ef09961713 lightningd: rewrite tor service interaction to be synchronous, robust.
There's no reason to do this async, and far easier to follow using normal
read/write.

The previous parsing was deeply questionable, using substring searches
only, and relying on the fact that a single non-blocking read would get
the entire response.  This is changed to do (somewhat) proper parsing
using ccan/rbuf.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-05-10 02:28:44 +00:00
Rusty Russell 85eff42d9a common/tor: move into lightningd.
This is simply the code to set up the automatic hidden service, so move
it into lightningd.

I removed the undefined parse_tor_wireaddr, and added a parameter name
to the create_tor_hidden_service_conn() declaration for update-mocks.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-05-10 02:28:44 +00:00
Saibato 877f63e99e Initial TOR v2/v3 support.
This is a rebased and combined patch for Tor support.  It is extensively
reworked in the following patches, but the basis remains Saibato's work,
so it seemed fairest to begin with this.

Minor changes:
1. Use --announce-addr instead of --tor-external.
2. I also reverted some whitespace and unrelated changes from the patch.
3. Removed unnecessary ';' after } in functions.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-05-10 02:28:44 +00:00
Rusty Russell d40d22b68e gossipd: don't try to connect to non-routable addresses.
Someone could try to announce an internal address, and we might probe
it.

This breaks tests, so we add '--dev-allow-localhost' for our tests, so
we don't eliminate that one.  Of course, now we need to skip some more
tests in non-developer mode.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-05-07 22:37:28 +02:00
Rusty Russell af065417e1 gossipd: handle wildcard addresses correctly.
If we're given a wildcard address, we can't announce it like that: we need
to try to turn it into a real address (using guess_address).  Then we
use that address.  As a side-effect of this cleanup, we only announce
*any* '--addr' if it's routable.

This fix means that our tests have to force '--announce-addr' because
otherwise localhost isn't routable.

This means that gossipd really controls the addresses now, and breaks
them into two arrays: what we bind to, and what we announce.  That is
now what we return to the master for json_getinfo(), which prints them
as 'bindings' and 'addresses' respectively.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-05-07 22:37:28 +02:00
Rusty Russell 73cd009a4c gossipd/lightningd: use wireaddr_internal.
This replacement is a little menial, but it explicitly catches all
the places where we allow a local socket.  The actual implementation of
opening a AF_UNIX socket is almost hidden in the patch.

The detection of "valid address" is now more complex:

	p->addr.itype != ADDR_INTERNAL_WIREADDR || p->addr.u.wireaddr.type != ADDR_TYPE_PADDING

But most places we do this, we should audit: I'm pretty sure we can't
get an invalid address any more from gossipd (they may be in db, but
we should fix that too).

Closes: #1323
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-05-07 22:37:28 +02:00
Rusty Russell fe96fe10c7 Clean up network options.
It's become clear that our network options are insufficient, with the coming
addition of Tor and unix domain support.

Currently:

1. We always bind to local IPv4 and IPv6 sockets, unless --port=0, --offline,
   or any address is specified explicitly.  If they're routable, we announce.
2. --addr is used to announce, but not to control binding.

After this change:

1. --port is deprecated.
2. --addr controls what we bind to and announce.
3. --bind-addr/--announce-addr can be used to control one and not the other.
4. Unless --autolisten=0, we add local IPv4 & IPv6 port 9735 (and announce if they are routable).
5. --offline still overrides listening (though announcing is still the same).

This means we can bind to as many ports/interfaces as we want, and for
special effects we can announce different things (eg. we're sitting
behind a port forward or a proxy).

What remains to implement is semi-automatic binding: we should be able
to say '--addr=0.0.0.0:9999' and have the address resolve at bind
time, or even '--addr=0.0.0.0:0' and have the port autoresolve too
(you could determine what it was from 'lightning-cli getinfo'.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-05-07 22:37:28 +02:00
Rusty Russell ed466a8523 lightningd: make explicit listen and reconnect flags.
We set no_reconnect with --offline, but that doesn't work if !DEVELOPER.
Make the flag positive, and non-DEVELOPER mode for gossipd.

We also don't override portnum with --offline, but have an explicit
'listen' flag.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-05-07 22:37:28 +02:00
Rusty Russell ac51231166 lightningd: remove --dev-hsm-seed option.
We can create the hsm file from python directly; that works even if we
don't have DEVELOPER set, and is simpler.

We add a test that the aliases are correct.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-05-05 17:55:10 +02:00
Rusty Russell 2ecfbf46e3 hsmd: drop newdir logic.
Originally we were supposed to tell the HSM we had just created the directory,
otherwise it wouldn't create a new seed.  But we modified it to check if
there was a seed file anyway: just move that logic into a branch of hsmd.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-05-05 17:55:10 +02:00
ZmnSCPxj, ZmnSCPxj jxPCSmnZ 333dcbf373 lightningd: Move onchaind replay and gossipd activation after daemonization
Fixes: #1445

Hacky fix, possibly.  First cut at avoiding starting up onchaind and gossipd (which might make queries of chaintopology, which might start up a bitcoin-cli) before we can daemonize.
2018-05-03 12:31:43 +02:00
Rusty Russell f083a699e2 gossipd: separate init and activate.
This means gossipd is live and we can tell it things, but it won't
receive incoming connections.  The split also means that the main daemon
continues (eg. loading peers from db) while gossipd is loading from the store,
potentially speeding startup.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-04-30 12:01:36 +02:00
Christian Decker 61317859f8 master: Move the gossipd initialization after the other inits
If we start accepting peer connections before we initialized some of the other
parts (mainly the chaintopology) we could end up asking for stuff that isn't
ready yet (blockchain head for example).

Signed-off-by: Christian Decker <decker.christian@gmail.com>
2018-04-30 12:01:36 +02:00
Rusty Russell 91d149b990 lightningd: insert db statement checking in io_loop.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-04-27 16:20:35 +02:00
practicalswift abf510740d Force the use of the POSIX C locale for all commands and their subprocesses 2018-04-27 14:02:59 +02:00
Christian Decker 96352858d6 chaintopology: Simplify rescan offset computation
Simplification of the offset calculation to use the rescan parameter, and rename
of `wallet_first_blocknum`. We now use either relative rescan from our last
known location, or absolute if a negative rescan was given. It's all handled in
a single location (except the case in which the blockcount is below our
precomputed offset), so this should reduce surprises.

Signed-off-by: Christian Decker <decker.christian@gmail.com>
2018-04-25 14:33:38 +02:00
Christian Decker 4b22760cf9 onchaind: Replay stored channeltxs to restore onchaind state
Signed-off-by: Christian Decker <decker.christian@gmail.com>
2018-04-25 14:33:38 +02:00
Rusty Russell 16d5015d56 lightningd: fix shutdown with unconfirmed channel.
We free the peers explicitly, but we don't free the unconfirmed channel:
the result is that it gets freed twice.

The workaround is to free the unconfirmed channel explicitly, but really
the peer should be tal_link'ed as it's basically a reference counted
structure.

1.974911451 lightningd(17906):INFO: 03b4bca72572889d4b44cd0f194f73d54972af367e1917579283122ee10fa05f54 chan #1: Owning subdaemon lightning_openingd died (62464)
1.980118094 lightningd(17906):BROKEN: FATAL SIGNAL 6
1.980150447 lightningd(17906):BROKEN: backtrace: common/daemon.c:42 (crashdump) 0x432ba0
1.980161268 lightningd(17906):BROKEN: backtrace: (null):0 ((null)) 0x7faeb18ff4af
1.980167045 lightningd(17906):BROKEN: backtrace: (null):0 ((null)) 0x7faeb18ff428
1.980171271 lightningd(17906):BROKEN: backtrace: (null):0 ((null)) 0x7faeb1901029
1.980175847 lightningd(17906):BROKEN: backtrace: ccan/ccan/tal/tal.c:98 (call_error) 0x47543e
1.980181814 lightningd(17906):BROKEN: backtrace: ccan/ccan/tal/tal.c:170 (check_bounds) 0x4755fb
1.980188065 lightningd(17906):BROKEN: backtrace: ccan/ccan/tal/tal.c:180 (to_tal_hdr) 0x475649
1.980193756 lightningd(17906):BROKEN: backtrace: ccan/ccan/tal/tal.c:504 (tal_free) 0x47600d
1.980199402 lightningd(17906):BROKEN: backtrace: lightningd/peer_control.c:118 (delete_peer) 0x423990
1.980205498 lightningd(17906):BROKEN: backtrace: lightningd/opening_control.c:574 (destroy_uncommitted_channel) 0x419df3
1.980212380 lightningd(17906):BROKEN: backtrace: ccan/ccan/tal/tal.c:240 (notify) 0x4757b0
1.980218052 lightningd(17906):BROKEN: backtrace: ccan/ccan/tal/tal.c:400 (del_tree) 0x475c61
1.980223398 lightningd(17906):BROKEN: backtrace: ccan/ccan/tal/tal.c:511 (tal_free) 0x476093
1.980229174 lightningd(17906):BROKEN: backtrace: lightningd/opening_control.c:549 (opening_channel_errmsg) 0x419d1a
1.980236227 lightningd(17906):BROKEN: backtrace: lightningd/subd.c:590 (destroy_subd) 0x42cf43
1.980242348 lightningd(17906):BROKEN: backtrace: ccan/ccan/tal/tal.c:240 (notify) 0x4757b0
1.980247771 lightningd(17906):BROKEN: backtrace: ccan/ccan/tal/tal.c:400 (del_tree) 0x475c61
1.980252814 lightningd(17906):BROKEN: backtrace: ccan/ccan/tal/tal.c:410 (del_tree) 0x475cb1
1.980258356 lightningd(17906):BROKEN: backtrace: ccan/ccan/tal/tal.c:410 (del_tree) 0x475cb1
1.980263311 lightningd(17906):BROKEN: backtrace: ccan/ccan/tal/tal.c:511 (tal_free) 0x476093
1.980269189 lightningd(17906):BROKEN: backtrace: lightningd/lightningd.c:412 (main) 0x4144ed

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-04-23 20:18:15 +00:00
Rusty Russell 5551c161ca gossipd: finish startup before master prints that it's ready.
We're about to remove automatic retrying of connect, and that uncovered
that we actually print out our "Server started" message before we create
the listening socket.

Move the init higher (outside the db transaction) and make it a
request/response, the loop until it's done.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-04-23 20:18:15 +00:00
Rusty Russell 8e976150ad json_fundchannel: fix release vs connect/nongossip race.
The new connect code revealed an existing race: we tell gossipd to
release the peer, but at the same time it connects in.  gossipd fails
the release because the peer is remote, and json_fundchannel fails.

Instead, we catch this race when we get peer_connected() and we were
trying to open a channel.  It means keeping a list of fundchannels which
are awaiting a gossipd response though.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-04-23 20:18:15 +00:00
ZmnSCPxj 2cee1ab20f peer_control: Make close wait for complete closure, with timeout.
Also report tx and txid, and whether we closed unilaterally or
bilaterally, if we could close the channel.

Also make a manpage.

Fixes: #1207
Fixes: #714
Fixes: #622
2018-04-23 05:24:46 +00:00
Christian Decker a41ab650e5 master: Move pid-file creation after the daemonization
Creating the pid-file before daemonizing results in the pid-file containing the
pid of the process that started the daemon, but is now dead.

Signed-off-by: Christian Decker <decker.christian@gmail.com>
Reported-By: Torkel Rogstad @torkelrogstad
2018-04-07 19:49:40 +02:00
Rusty Russell 1a4a59d221 common/daemon: common routines for all daemons.
In particular, the main daemon and subdaemons share the backtrace code,
with hooks for logging.

The daemon hook inserts the io_poll override, which means we no longer
need io_debug.[ch].  Though most daemons don't need it, they still link
against ccan/io, so it's harmess (suggested by @ZmnSCPxj).

This was tested manually to make sure we get backtraces still.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-04-03 14:03:28 +02:00
Rusty Russell 8975fc2ceb libwally: use their secp context for all our daemons.
I didn't convert all tests: they can still use a standalone context.
It's just marginally more efficient to share the libwally one for all
our daemons which link against it anyway.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-04-03 14:03:28 +02:00
Rusty Russell 54431d2b08 lightningd: escape our own alias when we print it in logs.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-03-26 00:20:53 +00:00
practicalswift 98f49c0837 Remove include in file foo.c that is already included in foo.h 2018-03-25 23:54:21 +00:00
ZmnSCPxj 5737853123 options: Add --autocleaninvoice-* options. 2018-03-20 17:25:51 +01:00
practicalswift 7bd1ae6b2e Fix misleading indentation (in the case of DEVELOPER) 2018-03-16 01:17:40 +00:00
Rusty Russell 0a6e3d1e13 utils: remove tal_tmpctx altogether, use global.
In particular, we now only free tmpctx at the end of main().

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-03-16 00:16:10 +00:00
Rusty Russell de5d84097e lightningd: remove ltmp context now we have tmpctx.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-03-16 00:16:10 +00:00
Rusty Russell ef2a063169 utils: add a global tmpctx.
I did a brief audit of tmpctx uses, and we do leak them in various
corner cases.  Fortunely, all our daemons are based on some kind of
I/O loop, so it's fairly easy to clean a global tmpctx at that point.

This makes things a bit neater, and slightly more efficient, but also
clearer: I avoided creating a tmpctx in a few places because I didn't
want to add another allocation.  With that penalty removed, I can use
it more freely and hopefully write clearer code.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-03-16 00:16:10 +00:00
ZmnSCPxj a0c2686ebd pay: Have sendpay wait for payment to be saved.
The payment should be stored in a "timely" manner, i.e.
within 10ms.
2018-03-14 05:33:09 +00:00
ZmnSCPxj a7a18b96cf pay: Rename some sendpay functions and fields to waitsendpay
Nearer to their actual purposes at this point.  Also in preparation
for next change.
2018-03-14 05:33:09 +00:00
Rusty Russell 5d5c1a5da5 lightningd: don't discard const in get_chainparams().
In general, it is true that accessors should take const and discard it,
but chainparams is *always* const.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-03-07 18:55:51 +01:00
Christian Decker 1aa21498c3 topology: Track blockchain changes in the DB
Signed-off-by: Christian Decker <decker.christian@gmail.com>
2018-03-06 18:59:27 +01:00
Rusty Russell b7ed5670d5 lightningd: close and reopen db across fork for daemonize
Fixes: #1092
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-02-27 00:09:34 +01:00
libbitc c360cb7b1f Add option to specify pid file
Closes #969
2018-02-20 03:24:23 +00:00
Rusty Russell a2c6ec6c9b lightningd: use tal_link for log_book.
BackgroundL Each log has a log_book: many logs can share the same one,
as each one can have a separate prefix.

Testing tickled a bug at the end of this series, where subd was
logging to the peer's log_book on shutdown, but the peer was already
freed.  We've already had issues with logging while lightningd is
shutting down.

There are times when reference counting really is the right answer,
this seems to be one of them: the 'struct log' share the 'struct
log_book' and the last 'struct log' cleans it up.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-02-19 02:56:51 +00:00
Christian Decker b2819f9f97 wallet: Add check that wallet matches the network on startup
Adds a simple check that compares genesis-blockhashes from the
chainparams against the blockhash that the wallet was created
with. The wallet is network specific, so mixing is always a bad idea.

Signed-off-by: Christian Decker <decker.christian@gmail.com>
2018-02-17 11:36:17 +00:00
ZmnSCPxj 700dda7e60 pay: Rename `pay_command` to `sendpay_command`
In preparation for separating `pay` algorithm from
`sendpay`.
2018-02-16 13:08:29 +01:00
Rusty Russell 6620305606 wallet: use last_processed_block to determine scan start.
With fallback depending on chainparams: this means the first upgrade
will be slow, but after that it'll be fast.

Fixes: #990
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-02-16 13:07:12 +01:00
Rusty Russell 256bdc12ff lightningd: activate crashlog later.
We error out for all kinds of reasons early on (eg. bitcoind down),
and printing a backtrace for them is pretty confusing.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-02-16 13:02:41 +01:00
Rusty Russell eb17d6af71 lightningd: implement --daemon.
Includes closing off stdout and stderr.  We don't do it directly in the
arg parser, as we want to interact normally (eg with other errors) before
we turn off stdout/stderr.

Fixes: #986
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-02-16 13:02:41 +01:00
Rusty Russell ccd0e5db54 ccan: update so we get exposed path constants.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-02-16 13:02:41 +01:00
Rusty Russell 6a3ccafaf9 wallet: don't implicitly remove peers, but do it explicitly.
This provides a sanity check that we are in sync, and also keeps the
logic in the program and out of the SQL.

Since the destructor now doesn't clean up the peer, there are some
wider changes to be made when cleaning up.  Most notably we create
lots of channels in run-wallet.c and they previously freed the peer:
now we need free the peer explicitly, so we need to free them first.

Suggested-by: @cdecker
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-02-14 11:31:58 +01:00
Rusty Russell 8c084d57ff lightningd: channels own the peer.
Channels are within the peer structure, but the peer is freed only
when the last channel is freed.

We also implement channel_set_owner() and make peer_set_owner() a temporary
wrapper.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-02-14 11:31:58 +01:00
Rusty Russell 32411de90e lightningd: split struct peer into struct peer and struct channel.
Much like the database; peer contains id, address, channel contains
per-channel information.  Where we create a channel, we always create
the peer too.

For the moment, peer->log and channel->log coexist side-by-side, to
reduce some of the churn.

Note that this changes the API to dev-forget-channel: if we have more
than one channel, we insist they specify the short-channel-id.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-02-14 11:31:58 +01:00
Rusty Russell c01f3267d5 common: only log io if they set --debug-subdaemon-io=<daemon> or with SIGUSR1.
Otherwise we just log the type of msg.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-02-07 00:46:49 +00:00
ZmnSCPxj 1e6747c28e wallet: Pass in timers object during construction.
In preparation for expiration.
2018-02-05 08:52:42 +00:00
Rusty Russell 9b8fe618f6 pay: remove cmd pointer from htlc_out.
Maintaining it was always fraught, since the command could go away
if the JSON RPC died.  Most recently, it was broken again on shutdown
(see below).

In future we may allow pay commands to block on previous payments, so
it won't even be a 1:1 mapping.  Generalize it: keep commands in a
simple list and do a lookup when a payment fails/succeeds.

Valgrind error file: valgrind-errors.5732
==5732== Invalid read of size 8
==5732==    at 0x4149FD: remove_cmd_from_hout (pay.c:292)
==5732==    by 0x468BAB: notify (tal.c:237)
==5732==    by 0x469077: del_tree (tal.c:400)
==5732==    by 0x4690C7: del_tree (tal.c:410)
==5732==    by 0x46948A: tal_free (tal.c:509)
==5732==    by 0x40F1EA: main (lightningd.c:362)
==5732==  Address 0x69df148 is 1,512 bytes inside a block of size 1,544 free'd
==5732==    at 0x4C2EDEB: free (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==5732==    by 0x469150: del_tree (tal.c:421)
==5732==    by 0x46948A: tal_free (tal.c:509)
==5732==    by 0x4198F2: free_htlcs (peer_control.c:1281)
==5732==    by 0x40EBA9: shutdown_subdaemons (lightningd.c:209)
==5732==    by 0x40F1DE: main (lightningd.c:360)
==5732==  Block was alloc'd at
==5732==    at 0x4C2DB8F: malloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==5732==    by 0x468C30: allocate (tal.c:250)
==5732==    by 0x4691F7: tal_alloc_ (tal.c:448)
==5732==    by 0x40A279: new_htlc_out (htlc_end.c:143)
==5732==    by 0x41FD64: send_htlc_out (peer_htlcs.c:397)
==5732==    by 0x41511C: send_payment (pay.c:388)
==5732==    by 0x41589E: json_sendpay (pay.c:513)
==5732==    by 0x40D9B1: parse_request (jsonrpc.c:600)
==5732==    by 0x40DCAC: read_json (jsonrpc.c:667)
==5732==    by 0x45C706: next_plan (io.c:59)
==5732==    by 0x45D1DD: do_plan (io.c:387)
==5732==    by 0x45D21B: io_ready (io.c:397)

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-02-02 20:33:49 +01:00
Rusty Russell 0600aac68f lightningd: rename --no-reconnect to --dev-no-reconnect.
It's a dev option.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-02-02 00:05:00 +01:00
Rusty Russell bd3480dc9c lightningd: remember --log-file arg.
And fclose old ones if we get handed it multiple times.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-02-02 00:05:00 +01:00
practicalswift 689db5b7c1 Onboarding: Make log output texts friendlier to new users 2018-01-29 03:22:27 +00:00
Carl Dong 8da65854f0 build: Add needed UNIX standard includes. 2018-01-23 16:10:19 +01:00
Rusty Russell 02e05ba6ff pay: remove struct pay_command.
It's all in wallet_payment, which is persistent.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-01-17 23:55:35 +01:00
ZmnSCPxj 93dc90990f invoices: Extensive reorganization of invoice system. 2018-01-16 13:03:54 +01:00
Rusty Russell 7e0bc88e2a gossip: fix default broadcast interval, move option.
This now makes a few more gossip tests time out without --dev-broadcast-interval

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-01-11 21:39:13 +01:00
ZmnSCPxj e717963210 lightningd: Do not search for ourself in the daemon dir.
In preparation for putting our daemons into pkglibexecdir; lightningd
itself will be in bindir, separate from our subdaemons.
2018-01-09 14:52:48 +01:00
ZmnSCPxj 7f88585d84 lightningd: When searching subd fall back to pkglibexecdir. 2018-01-09 14:52:48 +01:00
ZmnSCPxj c572c3bbee lightningd: Add --test-daemons-only option. 2018-01-09 14:52:48 +01:00
Rusty Russell 36316957e3 lightningd: set parent correctly for loaded peers.
The current code makes the channel the parent, which is a cycle.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-01-05 15:05:21 +01:00
Rusty Russell 1b41335121 chain_topology: two-stage startup.
Load the first block we're possibly interested in, then load the peers so
we can restore the tx watches, then finally replay to the current tip.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-01-05 15:05:21 +01:00
Rusty Russell 7b735e5de8 lightningd: scan blockchain from first possible block.
Eventually we want to save blockchain in db to avoid this scan, but
for the moment, we need to reload as far back as we may be interested in.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-01-05 15:05:21 +01:00
Rusty Russell 4dea3c4747 lightningd: remove unused db stubs.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-01-05 15:05:21 +01:00
ZmnSCPxj f2f116d613 lightningd: Add missing final cleanups. 2018-01-02 01:31:04 +00:00
Rusty Russell e695e5db09 lightningd: require explicit LIGHTNINGD_DEV_MEMLEAK env var to do memleak.
Otherwise every allocation and free is slowed down.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-12-20 12:43:10 +01:00
Rusty Russell 6b9c525f35 lightningd: use env var not cmdline to suppress backtrace.
We now set it up *before* parsing cmdline, so this is more convenient.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-12-20 12:43:10 +01:00
Rusty Russell dfc132b2fe memleak: add backtrace to allocations.
We use the tal notifiers to attach a `backtrace` object on every
allocation.

This also means moving backtrace_state from log.c into lightningd.c, so
we can hand it to memleak_init().

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-12-20 12:43:10 +01:00
Rusty Russell c956d9f5eb lightningd: tal memleak detection, dev-memleak command.
This is a primitive mark-and-sweep-style garbage detector.  The core is
in common/ for later use by subdaemons, but for now it's just lightningd.
We initialize it before most other allocations.

We walk the tal tree to get all the pointers, then search the `ld`
object for those pointers, recursing down.  Some specific helpers are
required for hashtables (which stash bits in the unused pointer bits,
so won't be found).

There's `notleak()` for annotating things that aren't leaks: things
like globals and timers, and other semi-transients.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-12-20 12:43:10 +01:00
Christian Decker c29923a623 topology: Add transaction filtering to connect_block
The filter is being populated while initializing the daemon and by
adding new keys as they are being generated. The filter is then used
in connect_block to identify transactions of interest.

Signed-off-by: Christian Decker <decker.christian@gmail.com>
2017-11-29 14:39:12 +01:00
Rusty Russell 593d0fa625 lightningd: initialize dev_subdaemon_fail to false.
Our testsuite uses --dev-fail-on-subdaemon-fail, so I didn't notice this
until I turned that off to chase a bug.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-11-22 19:40:46 +01:00
Christian Decker e0d86376e2 wallet: Track outgoing payments in the database
Signed-off-by: Christian Decker <decker.christian@gmail.com>
2017-11-20 06:28:03 +00:00
Rusty Russell 956350e62e lightningd: check peers don't leave dangling HTLCs when they die.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-11-11 01:29:51 +00:00
Rusty Russell 8229769438 lightningd: do initial database load within a transaction.
Safest, and we can then assert that all db calls are in transactions.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-11-06 10:24:34 +01:00
Rusty Russell 7586f3ed54 timers: wrap all calls in transactions.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-11-06 10:24:34 +01:00
Rusty Russell 9662589ed8 lightningd: move notify_new_block() callback to peer_htlcs.
And change prototype to take the lightningd structure.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-11-03 05:18:49 +00:00
Rusty Russell 78cd25d620 ipaddr: rename to wireaddr.
In future it will have TOR support, so the name will be awkward.

We collect the to/fromwire functions in common/wireaddr.c, and the
parsing functions in lightningd/netaddress.c.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-10-26 21:01:09 +00:00
Rusty Russell 329269d9d0 lightningd: support multiple addresses.
Currently only ipv4 and ipv6.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-10-26 21:01:09 +00:00
Rusty Russell 3c6eec87e3 Add DEVELOPER flag, set by default.
This is a bit messier than I'd like, but we want to clearly remove all
dev code (not just have it uncalled), so we remove fields and functions
altogether rather than stub them out.  This means we put #ifdefs in callers
in some places, but at least it's explicit.

We still run tests, but only a subset, and we run with NO_VALGRIND under
Travis to avoid increasing test times too much.

See-also: #176
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-10-26 12:53:09 +02:00
Rusty Russell b6a2b8c58b Add --rgb and --alias options.
And derive random ones from nodeid if they don't choose.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-10-25 09:16:14 +00:00
Rusty Russell c3bed51b2d test_lightningd.py: make HSM seeds constant for tests.
Makes it easier to compare before/after failures.  Ideally, we should
run under Travis both with this option and with the seed based on the
entire tmp path (which is still reproducible with determination, but
not fixed every run like this is).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-10-24 16:12:22 +02:00
Rusty Russell 5a256c724a subd: simplify and cleanup lifetime handling.
There are now only two kinds of subdaemons: global ones (hsmd, gossipd) and
per-peer ones.  We can handle many callbacks internally now.

We can have a handler to set a new peer owner, and automatically do
the cleanup of the old one if necessary, since we now know which ones
are per-peer.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-10-20 18:31:32 +02:00
Rusty Russell ebba5f85a2 handshaked: remove.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-10-20 18:31:32 +02:00
Rusty Russell 474887512d gossipd: rewrite to do the handshake internally.
Now the flow is much simpler from a lightningd POV:

1. If we want to connect to a peer, just send gossipd `gossipctl_reach_peer`.
2. Every new peer, gossipd hands up to lightningd, with global/local features
   and the peer fd and a gossip fd using `gossip_peer_connected`
3. If lightningd doesn't want it, it just hands the peerfd and global/local
   features back to gossipd using `gossipctl_handle_peer`
4. If a peer sends a non-gossip msg (eg `open_channel`) the gossipd sends
   it up using `gossip_peer_nongossip`.
5. If lightningd wants to fund a channel, it simply calls `release_channel`.

Notes:
* There's no more "unique_id": we use the peer id.
* For the moment, we don't ask gossipd when we're told to list peers, so
  connected peers without a channel don't appear in the JSON getpeers API.
* We add a `gossipctl_peer_addrhint` for the moment, so you can connect to
  a specific ip/port, but using other sources is a TODO.
* We now (correctly) only give up on reaching a peer after we exchange init
  messages, which changes the test_disconnect case.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-10-20 18:31:32 +02:00
Christian Decker cfac9a1f73 htlcs: Remove in-memory htlc_stubs
We pull them from the database on-demand, where we're storing them
anyway. No need to keep them in memory as well.

Signed-off-by: Christian Decker <decker.christian@gmail.com>
2017-10-10 23:59:34 +00:00
Christian Decker 11903aed6c wallet: Wiring in invoice persistence into JSON-RPC and master
Signed-off-by: Christian Decker <decker.christian@gmail.com>
2017-10-09 11:51:13 +10:30
Christian Decker 5a2242cde7 invoice: Refactor to make the invoice status explicit
So far we were tracking the status by including it either in the paid
or the unpaid list. This refactor makes the state explicit, which
matches the planned DB schema much better.

Signed-off-by: Christian Decker <decker.christian@gmail.com>
2017-10-09 11:51:13 +10:30
Christian Decker c1493ae60c lightningd: Added loading of HTLCs upon startup
Signed-off-by: Christian Decker <decker.christian@gmail.com>
2017-10-09 11:51:13 +10:30
Christian Decker 359c83b855 options: Move non-legacy options into options.c
Signed-off-by: Christian Decker <decker.christian@gmail.com>
2017-10-09 11:25:08 +10:30
Rusty Russell 66c1da795f lightningd: add debugging into io_loop.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-09-29 10:20:08 +09:30
Rusty Russell 4275ca5da3 lightningd: don't free log on shutdown until after lightningd freed.
Based-on-patch-by: Christian Decker
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-09-29 10:06:56 +09:30