Commit Graph

129 Commits

Author SHA1 Message Date
darosior a698395bf0 lightningd: '--encrypted-hsm', a new startup option
Add a new startup option which will, if set, prompt the user for a
password to derive a key from. This key will later be used to encrypt
and/or decrypt `hsm_secret`.

This was made a noarg option even if it would have been preferable to
let the user the choice of how to specify the password. Since we have
to chose, better to not let the password in the commands history.
2019-10-09 22:00:38 -05:00
Saibato 0f9ba53581 Add enable-autotor-v2 config variable
With enable-autotor-v2 defined in cmdline the default behavior to create
v3 onions with the tor service call, is set to v2 onions.

Signed-off-by: Saibato <saibato.naga@pm.me>
2019-09-28 00:31:02 +02:00
Rusty Russell d24c850899 gossipd: restore a flag for fast pruning
I was seeing some accidental pruning under load / Travis, and in
particular we stopped accepting channel_updates because they were 103
seconds old.  But making it too long makes the prune test untenable,
so restore a separate flag that this test can use.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-09-27 00:01:34 +00:00
Christian Decker 5953a5051c cli: Add command line option to specify the wallet location
Will be demuxed into starting the selected DB backend in one of the next
commits. Defaults to the old database location.

Signed-off-by: Christian Decker <decker.christian@gmail.com>
2019-09-22 02:03:43 +00:00
Rusty Russell 147eaced2e developer: consolidiate gossip timing options into one --dev-fast-gossip.
It's generally clearer to have simple hardcoded numbers with an
#if DEVELOPER around it, than apparent variables which aren't, really.

Interestingly, our pruning test was always kinda broken: we have to pass
two cycles, since l2 will refresh the channel once to avoid pruning.

Do the more obvious thing, and cut the network in half and check that
l1 and l3 time out.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-09-20 06:55:00 +00:00
Rene Pickhardt 8e7428da53 Added possibility to configure max_concurrent_htlcs value for our channels. Eclaire has a default of 30 and I thought why not going with their value and while doing so make it configureable. 2019-08-09 05:45:06 +00:00
Rusty Russell 979fbeb3b0 lightningd: simplify --daemon.
Dumb programs which have a --daemon option call fork() early.  This is
terrible UX since startup errors get lost: the program exits with
"success" immediately then you discover via the logs that it didn't
start at all.

However, forking late introduced a heap of problems with changing
pids.  Instead, fork early but keep stderr and the parent around: if
we fail early on, the parent fails with us.  We release our parent
with an explicit action just before the main loop.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-08-04 21:29:03 +02:00
Rusty Russell b460590278 plugins: detect and fixup old relative paths.
Note that we move adding the plugin to the plugins list to the end, otherwise
the hook from logging can examine the (uninitialized) plugin.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-08-03 09:10:11 +00:00
Rusty Russell 1e6eabf018 developer: add --dev-force-channel-secrets.
We don't have this on a per-channel basis (yet), but it's sufficient for testing
now.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-07-17 12:55:37 -05:00
Rusty Russell d59e2b1b4b developer: add --dev-force-bip32-seed to force a specific BIP32 seed.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-07-17 12:55:37 -05:00
Rusty Russell 07adb7efd6 developer: add --dev-force-privkey to allow setting a specific node key.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-07-17 12:55:37 -05:00
Rusty Russell d5bd1682f5 lightningd: free timers on shutdown.
Direct leak of 1024 byte(s) in 2 object(s) allocated from:
    #0 0x7f4c84ce4448 in malloc (/lib/x86_64-linux-gnu/libasan.so.5+0x10c448)
    #1 0x55d11b782c96 in timer_default_alloc ccan/ccan/timer/timer.c:16
    #2 0x55d11b7832b7 in add_level ccan/ccan/timer/timer.c:166
    #3 0x55d11b783864 in timer_fast_forward ccan/ccan/timer/timer.c:334
    #4 0x55d11b78396a in timers_expire ccan/ccan/timer/timer.c:359
    #5 0x55d11b774993 in io_loop ccan/ccan/io/poll.c:395
    #6 0x55d11b72322f in plugins_init lightningd/plugin.c:1013
    #7 0x55d11b7060ea in main lightningd/lightningd.c:664
    #8 0x7f4c84696b6a in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x26b6a)

To fix this, we actually make 'ld->timers' a pointer, so we can clean
it up last of all.  We can't free it before ld, because that causes
timers to be destroyed.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-06-30 16:41:30 +09:30
Rusty Russell c6ec9443b9 jsonrpc: don't return "stop" until we actually have freed resources.
This is a painpoint with testing, that there's a noticable delay between
"Shutting down" from lightning-cli and being able to restart lightningd.

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

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-06-12 02:00:15 +00:00
Rusty Russell 0b79538b18 lightningd: hang up on clients if they make us run out of memory.
This happened with the 800M JSON for the MCP listchannels on the raspberry
pi, and tal calls abort() by default.

We switch to raw malloc here; we could override the error hook for
tal, but this is neater since we're doing low-level things anyway,

I tested it manually with this patch:

   diff --git a/lightningd/json_stream.c b/lightningd/json_stream.c
   index cec9f5771..206ba37c0 100644
   --- a/lightningd/json_stream.c
   +++ b/lightningd/json_stream.c
   @@ -43,6 +43,14 @@ static void free_json_stream_membuf(struct json_stream *js)
    	free(membuf_cleanup(&js->outbuf));
    }
    
   +static void *membuf_realloc_hack(struct membuf *mb, void *rawelems,
   +				 size_t newsize)
   +{
   +	if (newsize > 1000000000)
   +		return NULL;
   +	return realloc(rawelems, newsize);
   +}
   +
    struct json_stream *new_json_stream(const tal_t *ctx,
    				    struct command *writer,
    				    struct log *log)
   @@ -53,7 +61,7 @@ struct json_stream *new_json_stream(const tal_t *ctx,
    	js->reader = NULL;
    	/* We don't use tal here, because we handle failure externally (tal
    	 * helpfully aborts with a msg, which is usually right) */
   -	membuf_init(&js->outbuf, malloc(64), 64, membuf_realloc);
   +	membuf_init(&js->outbuf, malloc(64), 64, membuf_realloc_hack);
    	tal_add_destructor(js, free_json_stream_membuf);
    #if DEVELOPER
    	js->wrapping = tal_arr(js, jsmntype_t, 0);

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-05-22 11:28:44 +00:00
Rusty Russell cb9c44ef27 gossipd: remove unnecessary dev_unknown_channel_satoshis arg.
We now have a test blockchain for MCP which has the correct channels,
so this is not needed.

Also fix a benchmark script bug where 'mv "$DIR"/log
"$DIR"/log.old.$$' would fail if you log didn't exist from a previous run.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-05-22 11:28:44 +00:00
Rusty Russell 4370ffa978 autoclean: make this a plugin.
No change in behavior.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-05-22 00:18:29 +02:00
Rusty Russell a2fa699e0e Use node_id everywhere for nodes.
I tried to just do gossipd, but it was uncontainable, so this ended up being
a complete sweep.

We didn't get much space saving in gossipd, even though we should save
24 bytes per node.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-04-09 12:37:16 -07:00
Michael Schmoock c7af0c93c9 feat: add min_capacity_sat config value and switch
- add config value min_capacity_sat that will replaces the magic value
  min_effective_htlc_capacity = AMOUNT_MSAT(1000000)
- add config switch min_capacity_sat
2019-04-09 13:20:52 +02:00
Rusty Russell 5b12007a4f gossipd: dev option to allow unknown channels.
This lets us benchmark without a valid blockchain.

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



Header from folded patch 'fixup!_gossipd__dev_option_to_allow_unknown_channels.patch':

fixup! gossipd: dev option to allow unknown channels.

Suggested-by: @cdecker
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-04-08 04:41:43 +00:00
Rusty Russell f8f6533dba dev: --dev-gossip-time so gossipd doesn't prune old data.
This is useful for canned data, such as the million channels project.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-04-08 04:41:43 +00:00
Michael Schmoock 5c0d658b30 fix: change type of config->fee_per_satoshi to uint32
This patch will properly set fee_per_satoshi to _unsigned_ integer,
as support for negative fees was removed from overall design.

This change does not break any tests, so I assume its
better this way.
2019-02-18 00:17:31 +00:00
Rusty Russell 61420bf79b configure: (mostly) revert b7a56f0531
Plugins are a first-class citizen again.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-01-15 02:52:13 +00:00
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
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 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
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 afac01380d gossipd: don't initialize broadcast interval, make field name explicit.
We initialize it to 30 seconds, but it's *always* overridden by the
gossip_init message (and usually to 60 seconds, so it's doubly
misleading).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-10-15 23:04:17 +00:00
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 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 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
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 231f14e645 lightningd: get basepoints from hsmd, don't ever get seed.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-07-24 00:40:01 +02:00
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 1bfa02d877 opts: Add option to disable DNS lookups
Mainly used to disable `gossipd` reaching out to the DNS seeds during testing.

Signed-off-by: Christian Decker <decker.christian@gmail.com>
2018-06-21 11:21:16 +02:00
Christian Decker 0b427b4c3c opts: Add the max_fee_multiplier to specify acceptable fee ranges
Signed-off-by: Christian Decker <decker.christian@gmail.com>
2018-06-14 00:59:42 +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 babfddeb3e lightningd: make --commit-time in milliseconds.
It was the only place we used opt_time, so cuts out much code.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-05-20 02:32:42 +00:00
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 edf1b3cec9 More option cleanups.
Because we have too many which are never used and I don't want to document
them.

1. Remove unused anchor_onchain_wait.  When implemented, it should be
   hardcoded to 100 or more.
2. Remove anchor_confirms_max.  10 always reasonable, and we can readd
   an override option should someone need it.
3. max_htlc_expiry should be the same as locktime_max (which increases
   from 3 to 5 days by default): they're both a limit on how long
   funds can be locked up.
4. channel_update_interval should always be a dev option.

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