Commit Graph

2149 Commits

Author SHA1 Message Date
Rusty Russell
72b215f6fe Make all internal message numbers unique.
We were sending a channeld message to onchaind, which was v. confusing
due to overlap.  We make all the numbers distinct, which means we can
also add an assert() that it's valid for that daemon, which catches
such errors immediately.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-09-28 13:07:05 +09:30
Rusty Russell
a8c60ed289 towire: remove useless double-invert in towire_bool.
GCC optimizes it out anyway: I sent an uninitialized var and it sent 8!
The receiver checks the value is 0 or 1 anyway.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-09-28 13:07:05 +09:30
Rusty Russell
aea77653d3 onchaind: update bolt #5, and implement failure of timed-out onchain HTLCs.
We re-use the value for reasonable_depth given by the master, and we
tell it when our timeout transactions reach that depth.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-09-28 13:07:05 +09:30
Rusty Russell
5666ba551f onchaind: fail htlcs which are not included in commitment tx.
As per update 149cf020d6

Fixes: #249
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-09-28 13:07:05 +09:30
Rusty Russell
4ce9f73e00 BOLT update to fae35903ae600d61124a3920363094b02d2ae8e5
This details handling of onchain HTLCs, and we document how we
implement it.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-09-28 13:07:05 +09:30
Rusty Russell
1ac9e0b532 onchain: implement penalty transaction.
Fixes: #242
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-09-28 13:07:05 +09:30
Rusty Russell
d640dc3a6f test_lightningd.py: fix wait_for_logs with duplicate entries.
In the next test, we wait for multiple 'sendrawtx exit 0' which
doesn't work because we use a set not a list, and the current code
would match multiple against the same thing.  The result was we didn't
wait for the final sendrawtransaction, and occasionally had test
failures as a result.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-09-28 13:07:05 +09:30
Rusty Russell
0e569209ec onchaind: immediately broadcast proposals which don't need to wait.
This removes an extra call and simplifies handling of "immediate" txs.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-09-28 13:07:05 +09:30
Rusty Russell
ab8251c214 lightningd: dev-reenable-commit RPC command to re-enable commit timer.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-09-28 13:07:05 +09:30
Rusty Russell
ce160d9b17 lightnind: _ dev-disconnect argument to suppress commit timer.
Required for catching daemon in exact state.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-09-28 13:07:05 +09:30
Rusty Russell
5957dd9303 lightnind: dev-sign-last-tx RPC command for testing penalty txs.
We don't normally let daemons send invalid txs.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-09-28 13:07:05 +09:30
Rusty Russell
cbe72b658e onchaind: extract payment_preimage from onchain HTLC redemption.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-09-28 13:07:05 +09:30
Rusty Russell
f96a04e2a6 onchaind: resolve HTLC transactions.
When we sent out an HTLC-Timeout or HTLC-Success tx, we need to spend
it after the timeout so it's safely in our wallet.

We generalize the tx_type OUR_UNILATERAL_TO_US_RETURN_TO_WALLET to
OUR_DELAYED_RETURN_TO_WALLET, since we use it for HTLC transactions too.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-09-28 13:07:05 +09:30
Rusty Russell
a76a53a933 onchaind: fulfill HTLCs onchain.
When we see an offered HTLC onchain, we need to use the preimage if we
know it.  So we dump all the known HTLC preimages at startup, and send
new ones as we discover them.

This doesn't cover preimages we know because we're the final
recipient; that can happen if an HTLC hasn't been irrevocably
committed yet.  We'll do that in a followup patch.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-09-28 13:07:05 +09:30
Rusty Russell
6ef64cd52b script: make "sig_and_empty" more generic, make htlc tx witness fns clearer.
For non-delayed HTLC success spends, we have a similar pattern ("<sig>
<preimage> <wscript>") so a we want to use the same function.

The other routines don't say "witness" in them, and should.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-09-28 13:07:05 +09:30
Rusty Russell
86ecc6a058 onchaind: move wallet pubkey and private keys into globals.
As we start handling HTLCs, we need access to these from the
"wait_for_resolved" loop.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-09-28 13:07:05 +09:30
Rusty Russell
2259faf3a9 onchaind: move feerate grinding into its own function.
We'll want to use this for htlc_success txs as well.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-09-28 13:07:05 +09:30
Rusty Russell
561a73328b onchaind: move keyset, feerate and dustlimit into global vars.
As we start handling HTLCs, we need access to these from the
"wait_for_resolved" loop.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-09-28 13:07:05 +09:30
Rusty Russell
664ce8bfc2 watch: remove peer_debug helper.
This was part of the transition; we can now just log directly.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-09-28 13:07:05 +09:30
Rusty Russell
9123d6d45e type_to_string: support preimage.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-09-28 13:07:05 +09:30
Rusty Russell
86313383a7 type_to_string: support ripemd160.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-09-28 13:07:05 +09:30
Christian Decker
e418f2a7fe gossip: Make sure timestamp does not change while creating sig
If the HSM is slow it might happen that the timestamp has changed the
second time we come around, so we generate the timestamp externally
and pass it in so we're sure it won't change between calls.

Reported-by: Rusty Russell
Signed-off-by: Christian Decker <decker.christian@gmail.com>
2017-09-16 09:02:06 +09:30
Christian Decker
081413e247 pytest: Added test to check node_announcement signatures
Reported-by: Rusty Russell
Signed-off-by: Christian Decker <decker.christian@gmail.com>
2017-09-16 09:02:06 +09:30
Rusty Russell
d39c27a304 lightningd: search path for our own directory.
Needed slight reformatting of log.h for stubs autogeneration.

Fixes: #277
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-09-15 13:44:34 +02:00
Rusty Russell
7e1154e1ec hsmd: use debug for backtraces.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-09-12 23:00:53 +02:00
Rusty Russell
a21e31b2b2 subdaemons: catch backtrace on fatal signals.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-09-12 23:00:53 +02:00
Rusty Russell
db19873ee4 lightningd: dump backtrace on crash or fatal().
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-09-12 23:00:53 +02:00
Rusty Russell
dba27188b7 external/libbacktrace: new external library for backtrace support.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-09-12 23:00:53 +02:00
Rusty Russell
584b160cdc lightningd: avoid errors on shutdown.
lightningd can crash on shutdown if it's in the middle of getchaintips;
we free the conn, the finished callback is called (process_chaintips),
and it reports that it received an empty result.

The simplest fix is to set a flag in the struct bitcoind destructor,
and avoid the callback.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-09-12 23:00:53 +02:00
Rusty Russell
ec63c0d10b lightningd: give option to crash if a subdaemon fails.
Either when it exits with a signal, or sends an error status message.
Then we make test_lightningd.py use it.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-09-12 23:00:53 +02:00
Rusty Russell
64a26b06e7 tests/test_lightningd.py: fail on crash.log.
We simply kill lightningd; we should stop it properly and have a timeout
to kill it if that fails.  However, that's beyond my python skills :(

So we just look for crash.log.  Unfortunately, we usually kill
lightningd before it's finished writing it.  So we look for it and
don't kill lightningd, just wait in this case.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-09-12 23:00:53 +02:00
Rusty Russell
ef28b6112c status: use common status codes for all the failures.
This change is really to allow us to have a --dev-fail-on-subdaemon-fail option
so we can handle failures from subdaemons generically.

It also neatens handling so we can have an explicit callback for "peer
did something wrong" (which matters if we want to close the channel in
that case).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-09-12 23:00:53 +02:00
Rusty Russell
f219955dc6 wallet: fix spending of change.
We recorded our own change as P2SH; it's not.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-09-12 22:59:24 +02:00
Rusty Russell
be90364f7f log: remove struct helpers.
They predated (and inspired) type_to_string(), which is more general.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-09-12 22:59:24 +02:00
Rusty Russell
afabbe0cb0 log: add ltmp convenience context.
It's sometimes nicer where you don't have a convenient tmpctx.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-09-12 22:59:24 +02:00
Rusty Russell
dfa062b06a Makefile: make default correctly build $(ALL_PROGRAMS) and $(ALL_TEST_PROGRAMS).
We can't reference the variables until after they're set, so hence the
two-step.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-09-11 14:29:20 +02:00
Rusty Russell
4f5e7a4d92 lightningd/Makefile: clean up.
1. Remove reference to old $(LIGHTNINGD_OLD_LIB_OBJS) var (in handshaked too).
2. Make check depend directly on unit tests, insteadof weird lightningd/tests
   variable.
3. check-source-bolt and check-whitespace are automatic for $(ALL_TEST_PROGRAMS)
   so we don't need them here.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-09-11 14:29:20 +02:00
Rusty Russell
4f6ae3209b common/test/test_sphinx: build fixes.
It isn't currently included in make check, so fix it to build and do that.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-09-11 14:29:20 +02:00
Christian Decker
47a7fac29f make: Add cli/lightning-cli to default make target
Closes #270

Reported-by: @sumBTC
Signed-off-by: Christian Decker <decker.christian@gmail.com>
2017-09-11 14:29:20 +02:00
Christian Decker
fa13190595 wallet: Hook into the hsm_funding_sig to extract change outputs
This is the step where we broadcast the transaction to the network and
a nice place to extract the change from the transaction.

Signed-off-by: Christian Decker <decker.christian@gmail.com>
2017-09-10 10:48:53 +09:30
Christian Decker
d14c9d30cd moveonly: Move make wallet_extract_owned available publicly
This was so far only used in the walletrpc, but we'll need it in a few
places.

Signed-off-by: Christian Decker <decker.christian@gmail.com>
2017-09-10 10:48:53 +09:30
Christian Decker
006d664b59 channeld: Make sure status_setup_sync is called before status_failed
This was still happening if reading the `channel_init` message failed.

Signed-off-by: Christian Decker <decker.christian@gmail.com>
2017-09-10 10:48:53 +09:30
Christian Decker
48b876e401 doc: cli is no longer in the daemon subdirectory
Closes #271

Reported-by: @sumBTC
Signed-off-by: Christian Decker <decker.christian@gmail.com>
2017-09-09 19:22:01 +02:00
Rusty Russell
cc34f572ca channeld: fix sync write to master.
We hit:
	assert(!peer->handle_master_reply);

#4  0x000055bba3b030a0 in master_sync_reply (peer=0x55bba41c0030, 
    msg=0x55bba41c6a80 "", replytype=WIRE_CHANNEL_GOT_COMMITSIG_REPLY, 
    handle=0x55bba3b041cf <handle_reply_wake_peer>) at channeld/channel.c:518
#5  0x000055bba3b049bc in handle_peer_commit_sig (conn=0x55bba41c10d0, 
    peer=0x55bba41c0030, msg=0x55bba41c6a80 "") at channeld/channel.c:959
#6  0x000055bba3b05c69 in peer_in (conn=0x55bba41c10d0, peer=0x55bba41c0030, 
    msg=0x55bba41c67c0 "") at channeld/channel.c:1339
#7  0x000055bba3b123eb in peer_decrypt_body (conn=0x55bba41c10d0, 
    pcs=0x55bba41c0030) at common/cryptomsg.c:155
#8  0x000055bba3b2c63b in next_plan (conn=0x55bba41c10d0, plan=0x55bba41c1100)
    at ccan/ccan/io/io.c:59

We got a commit_sig from the peer while waiting for the master to
reply to acknowledge the commitsig we want to send
(handle_sending_commitsig_reply).

The fix is to go always talk to the master synchronous, and not try to
process anything but messages from the master daemon.  This avoids the
whole class of problems.

There's a fairly simple way to do this, as ccan/io lets you override
its poll call: we process any outstanding master requests there, or
add the master fd to the pollfds array.

Fixes: #266
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-09-09 10:31:31 +09:30
Rusty Russell
5acbc04ec8 channeld: assert we're not somehow nonblocking in init_channel.
Christian reported seeing a zero-length packet come in; this seems the
most likely possibility.  

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-09-09 10:31:31 +09:30
Christian Decker
6d1bcc2c32 Removing the --ignore-dbversion option
It's no longer used and we definitely do not want to run with an
outdated or future db, so we'll terminate if we can't upgrade or
the version is newer than what we understand.

Signed-off-by: Christian Decker <decker.christian@gmai.com>
2017-09-08 17:02:04 +09:30
Christian Decker
a9f02a8985 sphinx: Remove annoying warning when MACs do not match
This was printing to stderr during the tests.

Signed-off-by: Christian Decker <decker.christian@gmail.com>
2017-09-08 17:02:04 +09:30
Christian Decker
f2d67f88c0 pytest: Run sendpay in a future so it doesn't complain about failing
For the permfail tests the sendpay call is supposed to fail, so this
was printing stacktraces upon success. Running in futures captures any
thrown exceptions and rethrows them when calling `result()`, in our
case we just ignore them.

Signed-off-by: Christian Decker <decker.christian@gmail.com>
2017-09-08 17:02:04 +09:30
Christian Decker
641a3b64cf channel: Use min_cltv_expiry in the channel announcements
So far we were always using the deadline in the announcements, that's
obviously not good, so this introduces the parameter as per spec.

Signed-off-by: Christian Decker <decker.christian@gmail.com>
2017-09-08 17:02:04 +09:30
Christian Decker
a44f893838 sphinx: Switch to version 0x00 like the spec says
We were using the wrong version, oops.

Signed-off-by: Christian Decker <decker.christian@gmail.com>
2017-09-08 17:02:04 +09:30