We currently scan through HTLCs: this isn't enough if we've only got a
feechange in the commitment, so use a flag (but keep both for now for
debugging).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
All the callers need to pass it in: currently channeld and openingd just
fake it by copying the payment point.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We were sending the announcement_signatures as soon as we locally
locked and got the announcement_depth, this doesn't make the channel
usable any sooner and forces the other side to stash the
signature. This defers the announcement_signature until the channel
really is usable.
This is done by adding an additional check for the remote locked
message and adding a trigger on remote lock.
Signed-off-by: Christian Decker <decker.christian@gmail.com>
These need to be different for testing the example in BOLT 11.
We also use the cltv_final instead of deadline_blocks in the final hop:
various tests assumed 5 was OK, so we tweak utils.py.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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>
In this case, it was a gossip message half-sent, when we asked the peer
to be released. Fix the problem in general by making send_peer_with_fds()
wait until after the next packet.
test_routing_gossip/lightning-4/log:
b'lightning_openingd(8738): TRACE: First per_commit_point = 02e2ff759ed70c71f154695eade1983664a72546ebc552861f844bff5ea5b933bf'
b'lightning_openingd(8738): TRACE: Failed hdr decrypt with rn=11'
b'lightning_openingd(8738): STATUS_FAIL_PEER_IO: Reading accept_channel: Success'
test_routing_gossip/lightning-5/log:
b'lightning_gossipd(8461): UPDATE WIRE_GOSSIP_PEER_NONGOSSIP'
b'lightning_gossipd(8461): UPDATE WIRE_GOSSIP_PEER_NONGOSSIP'
b'lightningd(8308): Failed to get netaddr for outgoing: Transport endpoint is not connected'
The problem occurs here on release, but could be on any place where we hand
a peer over when using ccan/io. Note the other case (channel.c).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
There is a race we see sometimes under valgrind on Travis which shows
gossipd receiving the node_announce from master before it reads the
channel_announce from channeld, and thus fails. The simplest solution
is to send the channel_announce and channel_update to master as well,
so it can ensure it sends them to gossipd in order
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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>
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>
The logic of dispatching the announcement_signatures message was
distributed over several places and daemons. This aims to simplify it
by moving it all into `channeld`, making peer_control only report
announcement depth to `channeld`, which then takes care of the
rest. We also do not reuse the funding_locked tx watcher since it is
easier to just fire off a new watcher with the specific purpose of
waiting for the announcement_depth.
Signed-off-by: Christian Decker <decker.christian@gmail.com>
Also, we split the more sophisticated json_add helpers to avoid pulling in
everything into lightning-cli, and unify the routines to print struct
short_channel_id (it's ':', not '/' too).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
To avoid everything pulling in HTLCs stuff to the opening daemon, we
split the channel and commit_tx routines into initial_channel and
initial_commit_tx (no HTLC support) and move full HTLC supporting versions
into channeld.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
As per lightning-rfc change 956e8809d9d1ee87e31b855923579b96943d5e63
"BOLT 7: add chain_hashes values to channel_update and channel_announcment"
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This brings us up to 955e874acc535ab2c74c1cf0eab61896ea4224ff in
https://github.com/lightningnetwork/lightning-rfc
This doesn't actually change anything; the only actual change is held back
for the next commit.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We need to check if we exit after sending a revoke_and_ack, otherwise
channeld ends up getting the closing_signed packet.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This was causing failures on testnet where confirmations are not
immediate.
Reported-by: Fabrice Drouin @sstone
Signed-off-by: Christian Decker <decker.christian@gmail.com>
As tracked down by Christian; by setting up the master conn first,
we make the master fd async. This means that the synchronous read
(in init_channel) can fail with -EAGAIN, and indeed, Christian
saw this when not running under valgrind.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This is what it actually is, and makes it clearer when we refer to the
spec. It's the commitment we're currently updating, which is the next
commitment.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We currently have the problem that the master can send new HTLCs before
we've processed the incoming reestablish message.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
The next patch includes wire/peer_wire.h and causes a compile error
as lightningd/gossip_control.c defined its own gossip_msg function.
New names are clearer.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We keep the scriptpubkey to send until after a commitment_signed (or,
in the corner case, if there's no pending commitment). When we
receive a shutdown from the peer, we pass it up to the master.
It's up to the master not to add any more HTLCs, which works because
we move from CHANNELD_NORMAL to CHANNELD_SHUTTING_DOWN.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
When we get a fail/fulfill on an outgoing HTLC, we tell the correspoding
incoming HTLC about it. But if that peer is disconnected, we don't.
The better solution is to copy the preimage/malformed/failmessage and mark
the incoming HTLC as resolved. This is done most simply by marking it
SENT_REMOVE_HTLC, which will work in the database case as well.
channeld now re-transmits appropriately when it gets started with an HTLC
in that state.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Rusty Russell
Christian Decker