Commit Graph

372 Commits

Author SHA1 Message Date
Rusty Russell
469401610f daemon: socket code.
At the moment, if you connect it just says Hello! and closes the socket.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-01-22 06:41:48 +10:30
Rusty Russell
c28a9ce6c7 daemon: lightning-cli
Minimal possible implementation; not real parsing or pretty printing.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-01-22 06:41:48 +10:30
Rusty Russell
9ccb51c93f daemon: UNIX domain socket for JSON-based control.
Also taken from pettycoin. 

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-01-22 06:41:48 +10:30
Rusty Russell
6ccfcf4477 daemon: timeout structure for IO.
For better or worse, the ccan/timer structure is completely minimal,
and designed to be wrapped inside a container structure.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-01-22 06:41:48 +10:30
Rusty Russell
aed857a30c json: routine to create a uint64_t field.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-01-22 06:41:48 +10:30
Rusty Russell
725512fb03 json: parse bitcoind-style bitcoin amount.
Always of form d*.dddddddd; we turn that into satoshis, because we're
sane.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-01-22 06:41:48 +10:30
Rusty Russell
06a25887da json: routine to parse a uint64_t.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-01-22 06:41:48 +10:30
Rusty Russell
ac4491909c daemon/json: helpers for using jsmn.
Also taken from pettycoin.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-01-22 06:41:48 +10:30
Rusty Russell
0c81b0918a daemon/jsmn: build the module.
Can't build inside the submodule, as that makes it dirty.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-01-22 06:41:48 +10:30
Rusty Russell
378dadc371 daemon: configuration directory (default ~/.lightning).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-01-22 06:41:48 +10:30
Rusty Russell
7b766f4bc8 daemon: fatal() function.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-01-22 06:41:48 +10:30
Rusty Russell
89f1f1548e daemon: dump logs on crash.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-01-22 06:41:47 +10:30
Rusty Russell
117cf6b02d daemon: add logging options.
Particularly logging to file.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-01-22 06:41:47 +10:30
Rusty Russell
3e77c55a3b Makefile: add daemon source sanity checks.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-01-22 06:41:47 +10:30
Rusty Russell
dd35260ce8 daemon: first code.
Logging code based heavily on pettycoin's.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-01-22 06:41:47 +10:30
Rusty Russell
e1eef5db65 close_tx: don't use protobufs.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-01-22 06:41:47 +10:30
Rusty Russell
9aa0eac814 bitcoin: hand in a secp256k1_context to all routines.
We don't want to re-create them internally, ever.

The test-cli tools are patched to generate them all the time, but
they're not performance critical.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-01-22 06:41:47 +10:30
Rusty Russell
cc1b1d7de7 funding: adjust_fee() to allow fee alterations.
This is used for figuring out the close transaction balances,
but can also be used in the future for dynamic fee support.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-01-22 06:41:47 +10:30
Rusty Russell
d5c30ee30b funding: funding_find_htlc and funding_remove_htlc.
Helpers for daemon.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-01-22 06:41:47 +10:30
Rusty Russell
6d6abd57e7 funding: remove protobufs.
Use our own structure with the information we need about HTLCs,
and remove protobufs from the API.

The is_funder() helper goes inside gather_updates.h.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-01-22 06:41:47 +10:30
Rusty Russell
d95d8a99c2 create_commit_tx: don't use protobufs in the API.
Hand anchor details and pubkeys directly; this is what we want
for the actual daemon which doesn't keep raw packets around.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-01-22 06:41:47 +10:30
Rusty Russell
65cc6bbd50 pkt_err: make it variadic.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-01-22 06:41:47 +10:30
Rusty Russell
3374ddd2a6 bitcoin: use a length arg to bitcoin_tx_from_hex
Our json parser doesn't use nul-terminated strings.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-01-22 06:41:47 +10:30
Rusty Russell
cf547d491b bitcoin: add len arg to pubkey conversion function.
Our json parser doesn't give nul-terminated strings.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-01-22 06:41:47 +10:30
Rusty Russell
79e1c9bb62 state: make bitcoin_commit() take a non-const peer.
We have to sign the commit at this stage, so easiest if peer isn't const
so we can sign it in-place.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-01-22 06:41:47 +10:30
Rusty Russell
6a7a046f60 state: add peer_unwatch_close_timeout() call.
This tell us to disarm the INPUT_CLOSE_COMPLETE_TIMEOUT: either we hit
an error and are going to unilateral close, or we received their signature
successfully.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-01-22 06:41:47 +10:30
Rusty Russell
144ab3bef4 state: make tx arguments const.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-01-22 06:41:47 +10:30
Rusty Russell
ebf2bc57d8 state: add async anchor creation.
Actually generating the anchor transaction in my implementation
requires interaction with bitcoind, which we want to be async.  So add
a callback and a new state to wait for it.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-01-22 06:41:47 +10:30
Rusty Russell
0db3c03ed1 state: fix BITCOIN_HTLC_TOTHEM_SPENT idata.
We use both union fields idata->btc and idata->htlc, which is clearly
wrong.  Have peer_tx_revealed_r_value return the HTLC it's talking
about.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-01-22 06:41:47 +10:30
Rusty Russell
2b3d5b4049 state: remove all traces of struct state_effect.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-01-22 06:41:47 +10:30
Rusty Russell
63ea6bfd7a state: add callbacks for adding/removing watches.
This lets us eliminate struct state_effect altogether (the next patch
removes the now-unused arguments).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-01-22 06:41:47 +10:30
Rusty Russell
1a20e8094f state: return tx to be queued directly.
Instead of effect->broadcast_tx.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-01-22 06:41:47 +10:30
Rusty Russell
e984df486d state: return Pkt to be queued directly.
Instead of effect->send_pkt.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-01-22 06:41:47 +10:30
Rusty Russell
7383da5f87 state: remove update_theirsig effect.
They get this from accept_pkt_update_accept() or accept_pkt_update_signature().

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-01-22 06:41:46 +10:30
Rusty Russell
63cb0667f6 state: use callbacks for htlc management.
We only have one htlc in flight at a time, but sometimes it changes:
particularly when we are lowpriority and a highpriority request comes
in.  Handle this using a set of callbacks for htlc handling.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-01-22 06:41:46 +10:30
Rusty Russell
c1dc7137ba names: generate names for command_status and state_peercond.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-01-22 06:41:46 +10:30
Rusty Russell
f48adb097e state: use peer_unexpected_pkt() for an unexpected packet.
Instead of effect->in_error.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-01-22 06:41:46 +10:30
Rusty Russell
4d9041e62a state: fix case where we replied to an error with an error.
Found by fixing bogus test in test_state_coverage.c

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-01-22 06:41:46 +10:30
Rusty Russell
9013a7d872 state: set peer->state directly.
Instead of new_state effect.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-01-22 06:41:46 +10:30
Rusty Russell
4c9a9f8982 state: return status of current command.
We temporarily move effect to the end of the arg list: we'll get rid
of it eventually.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-01-22 06:41:46 +10:30
Rusty Russell
03268014b4 state: use PEER_BUSY when doing a command.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-01-22 06:41:46 +10:30
Rusty Russell
14ede84d87 state: set peercond in peer directly.
Instead of stop_packets or stop_commands effects.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-01-22 06:41:46 +10:30
Rusty Russell
50a4b14a9a test/test_state_coverage.c: remove deferred packet handling.
We no longer defer packets.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-01-22 06:41:46 +10:30
Rusty Russell
3ab4ba1e6f state: add _THEYCOMPLETED states to reflect receiving PKT_OPEN_COMPLETE
This is cleaner than deferring the packet receive and asking for it later.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-01-22 06:41:46 +10:30
Rusty Russell
3c1b2ad1c1 state: don't defer CMD_SEND_HTLC_UPDATE
Now we're covered by the opening command anyway, and the rule that you
can't have two commands at once.

There are two more defers:

1) In state STATE_WAIT_FOR_UPDATE_SIG_LOWPRIO/HIGHPRIO we are waiting for
   their signature because they started an HTLC, we defer any new HTLC
   creation, and
2) We defer PKT_OPEN_COMPLETE when we're waiting for anchor depth.

The first can be solved by a flag indicating whether we are accepting new
commands at all, the second by a pair of new states.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-01-22 06:41:46 +10:30
Rusty Russell
fd370075f2 state: use STATE_INIT and separate inputs to decide on anchor.
This is conceptually cleaner, especially since it means we're running
a command until we're set up (which prevents other commands, so no
special case needed).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-01-22 06:41:46 +10:30
Rusty Russell
e5e58eeb00 state.c: fix assertion.
They work on current state values, but they're wrong: use macros to
make it clearer.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-01-22 06:41:46 +10:30
Rusty Russell
caa27f1d93 names.h/names.c: wrappers to get name for states/inputs.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-01-22 06:41:46 +10:30
Rusty Russell
e6dfff3ba8 licensing: Make license explicit.
Note that we're BSD-MIT but some of the ccan modules are different
licenses.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-01-22 06:41:46 +10:30
Rusty Russell
7cf786f1f4 pull_bitcoin_tx: allocate outputs off tx itself.
All the members of the transaction should be allocated off the
transaction, as they have the same lifetime.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-01-22 06:41:46 +10:30