Commit Graph

230 Commits

Author SHA1 Message Date
Rusty Russell 2be1f3fe1b lightningd: extract routehint selection code.
We're going to want this for bolt13 formation as well.

As a result of reworking the logic into "candidate selection" then
"route hint selection", we need to change the way round-robin works.
We use a simple incrementing index now.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2020-09-08 19:47:11 +09:30
Rusty Russell ea819107eb common: remove funding_tx.
It's now only needed by devtools/mkfunding, so include a reduced one
there, and this also means we remove tx_spending_utxos().

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2020-09-08 10:14:42 +09:30
Rusty Russell 83298c030a wallet: switch over to withdraw in module, remove lots of unused code.
This removes the reservation cleanup at startup, too, now they're all
using 'reserved_til'.

This changes test_withdraw, since it asserted that outputs were marked
spent as soon as we broadcast a transaction: now they're reserved until
it's mined.  Similarly, test_addfunds_from_block assumed we'd see funds
as soon as we broadcast the tx.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Changed: JSON-RPC: `withdraw` now randomizes input and output order, not BIP69.
2020-09-08 10:14:42 +09:30
Rusty Russell 1746406e41 Makefile: normalize all the Makefiles
We create ALL_PROGRAMS, ALL_TEST_PROGRAMS, ALL_C_SOURCES and
ALL_C_HEADERS.  Then the toplevel Makefile knows which are
autogenerated (by wildcard), so it can have all the rules to clean
them or check the source as necessary.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2020-08-31 21:33:26 -05:00
Rusty Russell 496c0dd1e6 common/random_select: central place for reservoir sampling.
Turns out we can make quite a simple API out of it.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2020-08-28 10:56:50 +09:30
Rusty Russell 3e52d4100d common: 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
ZmnSCPxj jxPCSnmZ 4ca2e49812 lightningd/plugin.c: Make builtin plugins important.
Changelog-Changed: plugin: Builtin plugins are now marked as important, and if they crash, will cause C-lightning to stop as well.
2020-08-04 13:27:51 -05:00
niftynei fbe50e087a setup: create a common setup which will handle the wally-context
Since we now over-write the wally malloc/free functions, we need to do
so for tests as well. Here we pull up all of the common setup/teardown
logic into a separate place, and update the tests that use libwally to
use the new common_setup core

Changelog-None
2020-05-19 13:35:42 +09:30
Rusty Russell fda5f0b427 common/channel_id: move channel_id into its own file.
The definition was in wire/wire.h, and helper functions in fromwire.c!

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2020-05-18 14:51:12 +02:00
lisa neigut 9bb9e69bf3 notifications: add new notification for coin movements and two helpers
Adds a new plugin notification for getting information about coin
movements. Also includes two 'helper' notification methods that can be
called from within lightningd. Separated from the 'common' set because
the lightningd struct is required to finalize the blockheight etc

Changelog-Added: Plugins: new notification type 'coin_movement'
2020-05-12 15:46:58 +09:30
Christian Decker 93eaf3017d watchtower: Add function to create penalty transactions 2020-05-07 15:05:39 +09:30
Christian Decker 30e4443eae openingd: Return the penalty base after funding completes 2020-05-07 15:05:39 +09:30
Rusty Russell b29d1ed3ff channeld: support HTLCs with blinding (EXPERIMENTAL_FEATURES)
Note that it's channeld which calculates the shared secret, too.  This
minimizes the work that lightningd has to do, at cost of passing this
through.

We also don't yet save the blinding field(s) to the database.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2020-04-14 12:51:18 +09:30
Rusty Russell 3b4a06f52b common: generalize ecdh function.
common/onion is going to need to use this for the case where it finds a blinding
seed inside the TLV.  But how it does ecdh is daemon-specific.

We already had this problem for devtools/gossipwith, which supplied a
special hsm_do_ecdh().  This just makes it more general.

So we create a generic ecdh() interface, with a specific implementation
which subdaemons and lightningd can use.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2020-04-04 16:08:49 +10:30
Rusty Russell f7fe8a952d lightningd: forward onion messages.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2020-04-02 14:32:38 +10:30
Rusty Russell 8c984fbf1d common: make sphinx.c use hmac.c.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2020-03-25 14:26:28 +10:30
darosior d35387f489 common: move json_stream from lightningd/ to common/
It's not lightningd-specific and we are going to need it for libplugin. The only
drawback is the log_io removal in json_stream_output_write()..
2020-02-04 13:24:32 +10:30
Rusty Russell 1099f6a5e1 common: use struct onionreply.
This makes it clear we're dealing with a message which is a wrapped error
reply (needing unwrap_onionreply), not an already-wrapped one.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2020-01-23 16:17:42 +10:30
Rusty Russell 72aa315b5e lightningd: save the fee_states into the database.
This is the final step: we pass the complete fee_states to and from
channeld.

Changelog-Fixed: "Bad commitment signature" closing channels when we sent back-to-back update_fee messages across multiple reconnects.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-12-12 22:15:48 +01:00
Rusty Russell 36b1e884dd lightningd: implement htlc sets.
This isn't plumbed in yet, but the idea is that every htlc gets put
into a "set" and then we process them once the set is satisfied.  For
the !EXPERIMENTAL_FEATURES, the set is simply always size 1.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-12-12 15:03:53 +01:00
Rusty Russell f7ebbb2ec5 common: make sphinx code ignorant of payload format.
Now "raw_payload" is always the complete string (including realm or length
bytes at the front).

This has several effects:
1. We can receive an decrypt an onion which is grossly malformed.
2. We can still hand this to the htlc_accepted hook.
3. We then fail it unless the htlc_accepted accepts it manually.
4. The createonion API now takes the raw payload, and does not know
   anything about "style".

The only caveat is that the sphinx code needs to know the payload
length: we have a call for that, which simply tells it to copy the
entire onion (and treat us as the final node) if it's invalid.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-12-09 14:33:31 +01:00
Saibato f6006f43a9 Init commit to be able to create a tor static service on the fly.
We  want to have a static Tor service created from a blob bound to
our node on cmdline

Changelog-added: persistent Tor address support
Changelog-added: allow the Tor inbound service port differ from 9735

Signed-off-by: Saibato <saibato.naga@pm.me>

Add base64 encode/decode to common

We need this to encode the blob for the tor service

Signed-off-by: Saibato <saibato.naga@pm.me>
2019-12-03 23:35:18 +01:00
Rusty Russell fc9a2a5dba lightningd: add signmessage JSON command.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-10-14 18:58:44 -05:00
Rusty Russell c99906a9a9 per-peer-daemons: tie in gossip filter.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-09-06 14:35:01 +02:00
Rusty Russell 3fa375881a bigsize: make it a proper first-class type.
It doesn't belong in bitcoin, and should not be confused with varint_t.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-07-31 23:25:59 +00:00
darosior 2864b4de01 lightningd/plugin_control: add a 'plugin' command
This adds a new pair of files : lightningd/plugin_control, along with a new RPC
command : 'plugin'. This command can be used to manage plugins without restarting lightningd:

lightning-cli plugin start helloworld.py
lightning-cli plugin stop helloworld.py
2019-07-28 07:24:04 +00:00
lisa neigut a9d0550cf4 common: pull out scriptPubkey address method
We're going to need this for P2WSH scripts. pull it out into
a common file plus adopt the sanity checks so that it will allow for
either P2WSH or P2WPKH (previously only encoded P2WPKH scripts)
2019-06-12 02:22:43 +00:00
Rusty Russell 220449e1cd ccan: import ccan/json_out and ccan/json_escape.
These are generalized from our internal implementations.

The main difference is that 'struct json_escaped' is now 'struct
json_escape', so we replace that immediately.

The difference between lightningd's json-writing ringbuffer and the
more generic ccan/json_out is that the latter has a better API and
handles escaping transparently if something slips through (though
it does offer direct accessors so you can mess things up yourself!).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-06-12 02:00:15 +00:00
Rusty Russell ad24d94c7b lightningd: make 'spendable_msatoshi' more realistic.
Take into account the fee we'd have to pay if we're the funder, and
also drop to 0 if the amount is less than the smallest HTLC the peer
will accept.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-06-11 23:19:11 +00:00
Christian Decker b6b548a983 wallet: Rip out the txtypes type in favor of enum wallet_tx_type
Suggested-by: Rusty Russell <@rustyrussell>
Signed-off-by: Christian Decker <decker.christian@gmail.com>
2019-06-08 02:58:27 +00:00
Rusty Russell 38d2899fbb common/per_per_state: generalize lightningd/peer_comm Part 1
Encapsulating the peer state was a win for lightningd; not surprisingly,
it's even more of a win for the other daemons, especially as we want
to add a little gossip information.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-06-04 01:29:39 +00:00
ZmnSCPxj 48df6c8566 lightningd/io_loop_with_timers.c: Move mainloop to its own source file, have chaintopology use it.
Fixes: #2687
2019-05-31 17:57:10 +02:00
Rusty Russell eaac0d7105 lightningd: group crypto_state and fds into a convenient structure.
These are always handed to subdaemons as a set, so group them.  This makes
it easier to add an fd (in the next patch).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-05-13 05:16:18 +00:00
Rusty Russell b4455d517c common/node_id: new type.
Node ids are pubkeys, but we only use them as pubkeys for routing and checking
gossip messages.  So we're packing and unpacking them constantly, and wasting
some space and time.

This introduces a new type, explicitly the SEC1 compressed encoding
(33 bytes).  We ensure its validity when we load from the db, or get it
from JSON.  We still use 'struct pubkey' for peer messages, which checks
validity.

Results from 5 runs, min-max(mean +/- stddev):
	store_load_msec,vsz_kb,store_rewrite_sec,listnodes_sec,listchannels_sec,routing_sec,peer_write_all_sec
	39475-39572(39518+/-36),2880732,41.150000-41.390000(41.298+/-0.085),2.260000-2.550000(2.336+/-0.11),44.390000-65.150000(58.648+/-7.5),32.740000-33.020000(32.89+/-0.093),44.130000-45.090000(44.566+/-0.32)

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-04-09 12:37:16 -07:00
Rusty Russell a25e22737c common/json_tok: add param_msat / param_sat.
The current param_sat accepts "any": rename and move that to invoice.c
where it's called.  We rename it to param_msat_or_any and invoice.c
is our first (trivial) amount_msat user.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-02-21 03:44:44 +00:00
Rusty Russell 0a8b4f8935 pay: remove inbuilt command in favor of plugin.
This doesn't actually remove some of the now-unnecessary infrastructure
though.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-01-17 13:02:24 +01:00
Christian Decker f8f76e3d31 plugin: Add hook registration
I might have gone a bit overboard with the type-checking, but
typesafe_cb_cast is quite nice to use, so why not. The macro to
register a new hook encapsulates the entire flow from param
serialization, to dispatch, parsing and callback dispatch in one
bundle. I was tempted to have the callback outside of the
registration, but it's unlikely that we'll have two calls to the same
hook with different callbacks.

Signed-off-by: Christian Decker <decker.christian@gmail.com>
2019-01-17 05:42:49 +00:00
Rusty Russell e65b680807 json: move bitcoin/lightning specific helpers into common/json_helpers.
We don't need them in common/json, since lightning-cli doesn't need these,
but plugins want them.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-01-15 12:01:38 +01:00
Christian Decker 7355e62964 plugin: Add subscriptions when processing the plugin manifest
Signed-off-by: Christian Decker <decker.christian@gmail.com>
2018-12-30 14:36:02 +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 a42c8bfb38 openingd: wire up dev_memleak.
This is a bit different from the other cases: we need to iterate through
the peers and ask all the ones in openingd.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-11-22 05:15:42 +00:00
Rusty Russell e17f69ce2d json_stream: disentangle JSON handling from command.
We promote 'struct json_stream' to contain the membuf; we only attach
the json_stream to the command when we actually call
json_stream_success / json_stream_fail.

This means we are closer to 'struct json_stream' being an independent
layer; the tests are already modified to use it directly to create
JSON.

This is also the first step toward re-enabling non-serial command
execution.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-11-20 16:51:19 +01:00
Christian Decker b6a1735929 plugin: Basic scaffolding for the plugin subsystem 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
Christian Decker b86edf3cf1 jsonrpc: Simple demonstration on how jcon can be locked for streams
This is a bit of overkill now that we simply accumulate the entire
JSON response in the buffer before flushing, but when we move to
streamed responses it allows us to have a single command that has
exclusive access to the out direction of the JSON-RPC connection.
2018-10-11 01:43:55 +00:00
Rusty Russell e012e94ab2 hsmd: rename hsm_client_wire_csv to hsm_wire.csv
That matches the other CSV names (HSM was the first, so it was written
before the pattern emerged).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-09-20 09:49:39 +02:00
Rusty Russell 8f1f1784b3 hsmd: remove hsmd/client.c
It was only used by handshake.c.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-09-20 09:49:39 +02:00
Rusty Russell bcbcf2f0ae lightningd: fix Makefile to remove cruft.
Everything depends on common headers etc, and the HSM_CLIENT_HEADERS was removed
quite a while ago.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-09-14 22:11:48 +02:00
Rusty Russell 30f129252d wallet: include Makefile from lightningd/Makefile so that lightning headers defined.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-09-14 22:11:48 +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 71575b2115 ping: no longer a dev_ command.
Fixes: #1407
Suggested-by: conanoc@gmail.com
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-08-10 12:46:45 +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 dfaf74d972 hsmd: add routines to sign onchain transactions, part 1.
This handles the "to-us" transactions which return funds to the wallet.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-07-24 00:40:01 +02:00
Mark Beckwith 19a0b78fec param: renamed files
Signed-off-by: Mark Beckwith <wythe@intrig.com>
2018-07-16 03:51:21 +00:00
Mark Beckwith 4d1d0438e1 Typesafe callback system for parsing json
This is part of #1464 and incorporates Rusty's suggested updates from #1569.

See comment in param.h for description, here's the basics:

	unsigned cltv;
	const jsmntok_t *note;
	u64 msatoshi;
	struct param * mp;

	if (!param_parse(cmd, buffer, tokens,
			 param_req("cltv", json_tok_number, &cltv),
			 param_opt("note", json_tok_tok, &note),
			 mp = param_opt("msatoshi", json_tok_u64, &msatoshi),
			 NULL))
		return;

	if (param_is_set(mp))
		do_something()

There is a lot of developer mode code to make sure we don't make mistakes,
like trying to unmarshal into the same variable twice or adding a required param
after optional.

During testing, I found a bug (of sorts) in the current system.  It allows you
to provide two named parameters with the same name without error; e.g.:

	# cli/lightning-cli -k newaddr addresstype=p2sh-segwit addresstype=bech32
	{
		  "address": "2N3r6fT65PhfhE1mcMS6TtcdaEurud6M7pA"
	}

It just takes the first and ignores the second.  The new system reports this as an
error for now.  We can always change this later.
2018-07-05 00:19:16 +00:00
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 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 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 e6c678e5df gossipd: take over address determination, from master.
It does all the other address handling, do this too.  It also proves useful
as we clean up wildcard address handling.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-05-07 22:37:28 +02:00
Mark Beckwith 7767b68ee9 Removed redundancies in withdraw and fundchannel.
No new functionality, just a continuation of my work toward completing #665.

I removed the common members of `struct withdrawal` and `struct fund_channel`
and placed them in a new `struct wallet_tx`.  Then it was fairly straightforward
to reimplement the existing code in terms of `wallet_tx`.

Since I made some structural changes I wanted to get this approved before I
go any farther.

Added 'all' to fundchannel help message.
2018-05-03 18:20:20 +02:00
Christian Decker c635396766 common: Moving some bech32 related utilities to bech32_util
These were so far only used for bolt11 construction, but we'll need them for the
DNS seed as well, so here we just pull them out into their own unit and prefix
them.

Signed-off-by: Christian Decker <decker.christian@gmail.com>
2018-04-25 12:34:55 +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 d92579f627 common/json_escaped: new type which explicitly notes a string is already JSON.
Trivial to use as a string, but it still means you should be careful
around it.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-03-26 00:20:53 +00:00
ZmnSCPxj 9efe123a0d lightningd/json: Move json helpers specific for lightningd to new module. 2018-03-19 00:27:55 +00:00
Christian Decker 2680e6d9ff wallet: Move txfilter into wallet
Transaction filters are strongly related to the wallet, this move just
makes it a bit more explicit.

Signed-off-by: Christian Decker <decker.christian@gmail.com>
2018-03-06 18:59:27 +01:00
Rusty Russell ae8fb96d06 lightningd/channel_control: routines to control channeld (move from peer_control.c)
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-02-20 22:36:21 +01:00
Rusty Russell 372040bbd5 lightningd/onchain_control: routines to control onchaind (move from peer_control.c)
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-02-20 22:36:21 +01:00
Rusty Russell 9176ee628c lightningd/closing_control: routines to control closingd (move from peer_control.c)
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-02-20 22:36:21 +01:00
Rusty Russell a83ff83328 lightningd/connect_control: routines to control connecting (move from peer_control.c)
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-02-20 22:36:21 +01:00
Rusty Russell 4cf274b1c0 lightningd/opening_control: routines to control openingd (move from peer_control.c)
We also fold opening_got_hsm_funding_sig() into the caller; it was
previously a callback before we decided to always use the HSM
synchronously.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-02-20 22:36:21 +01:00
Rusty Russell f76ff90485 status: split off error messages into a new 'peer_status' type.
Several daemons (onchaind, hsm) want to use the status messages, but
don't communicate with peers.  The coming changes made them drag in
more code they didn't need, so instead we have a different
non-overlapping type.

We combine the status_received_errmsg and status_sent_errmsg
into a single status_peer_error, with the presence or not of the
'error_for_them' field indicating direction. 

We also rename status_fatal_connection_lost() to
peer_failed_connection_lost() to fit in.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-02-19 02:56:51 +00:00
Rusty Russell 611ecc60ae lightningd: rename peer_state -> channel_state, remove OPENINGD.
And now we can finally do the db upgrade to remove any OPENINGD
channels once, since we never put them back.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-02-19 02:56:51 +00:00
ZmnSCPxj fda26bdcda payalgo: New file for pay command. 2018-02-16 13:08:29 +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 fd498be7ca status: generate messages rather than marshal/unmarshal manually.
Now we have wirestring, this is much more natural.  And with the
24M length limit, we needn't be so concerned about dumping 64k peer
messages in hex.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-02-08 19:07:12 +01:00
Rusty Russell 84bf60f934 status: add multiple levels of logging.
status_trace maps to status_debug.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-02-07 00:46:49 +00:00
ZmnSCPxj 6d789282c9 jsonrpc_errors.h: Header for JSON-RPC errors. 2018-02-06 17:05:12 +01:00
ZmnSCPxj 83e76e3ac3 features: Move feature-handling code to a common/features.c source. 2018-01-13 11:29:42 +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
Rusty Russell 95df553813 lightningd: add dev-memdump command.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-12-20 12:43:10 +01:00
Christian Decker 9ba99d2b2d hsm: Cleanup after merging control and client libraries
Change all calls to use the correct serialization and deserialization
functions, include the correct headers and remove the control
messages.

Signed-off-by: Christian Decker <decker.christian@gmail.com>
2017-12-03 17:06:13 +01:00
Christian Decker 1eb3c9d2b3 txfilter: Add a simple transaction filter
This is mainly used to filter for transactions that may be of interest
to us, i.e., whether one of our keys is the recipient. It currently
does onyl simple scriptpubkey checks, but will eventually be extended
to use bloomfilters and add more sophisticated checks.

For now the goal is to speed up the processing of blocks during startup.

Signed-off-by: Christian Decker <decker.christian@gmail.com>
2017-11-29 14:39:12 +01:00
Rusty Russell af7e6158af Makefile: clean needs to do more, distclean should remove everything.
I checked this with git status --ignored after a full build and 'make distclean'.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-11-24 13:29:03 +01:00
Rusty Russell 45f5bb7fac bolt11: move to common/ and sign via callback.
JSON stuff is moved to lightningd/invoice.c.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-11-24 13:22:18 +01:00
Rusty Russell 78d0a5e840 bech32: move to common/
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-11-24 13:22:18 +01:00
Rusty Russell 15e1e4b099 bolt11: support for encoding/decoding and checking.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-11-01 01:09:23 +00:00
Rusty Russell 79df10f782 bech32: pull in bech32 sample code, almost untouched.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-11-01 01:09:23 +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 4bd0352951 lightningd: try to figure out our own IP automatically.
Most of the code is from bitcoind, to handle the weird different non-public
IP ranges.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-10-26 21:01:09 +00:00
Rusty Russell bd1cac34ce netaddr: remove.
We use ipaddr everywhere now, so we can remove this.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-10-26 21:01:09 +00:00
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
Rusty Russell f172be71dc gossipd: fail peer for the master daemon.
This fixes the only case where the master currently has to write directly
to the peer: re-sending an error.  We make gossipd do it, by adding
a new gossipctl_fail_peer message.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-10-20 18:31:32 +02:00
Rusty Russell 2394c9a2e7 crypto_state: move to its own file.
In particular, the main daemon needs to pass it about (marshal/unmarshal)
but it won't need to actually use it after the next patch.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-10-20 18:31:32 +02:00
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 bbed5e3411 Rename subdaemons, move them into top level.
We leave the *build* results in lightningd/ for ease of in-place testing though.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-08-29 17:54:14 +02:00
Rusty Russell 739b163f8b Makefiles: simplify dependencies.
Gather all binaries and objects and make the depend on external
requirements and common headers.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-08-29 17:54:14 +02:00
Rusty Russell f42f34b82d external: new subdirectory for all external libraries and submodules.
You will want to 'make distclean' after this.

I also removed libsecp; we use the one in in libwally anyway.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-08-29 17:54:14 +02:00
Rusty Russell c6976cd947 shachain: always build 48 bit version.
No more special Makefile hacks required.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-08-29 17:54:14 +02:00