Next patch re-enables runtime leak checking for dualopend, so fix those
leak reports.
In some cases, this menas allocating off tmpctx or state->channel
(which gets reset on failure), not state. The problem with tmpctx is
that there are event loops in the *middle* of some functions, which
free it. So for RBF functions we use a rbf_ctx temporary (with leak
detection suppressed, like it is for tmpctx), then be careful to free
it on all exits!
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This is neater than what we had before, and slightly more general.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Changed: JSON_RPC: `sendcustommsg` now works with any connected peer, even when shutting down a channel.
Once we send funding_locked, gossipd could start seeing channel_updates
from the peer (which get sent so we can use the channel in routehints
even before it's announcable).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This was put in late 2019, and @t-bast says Eclair doesn't ignore their
errors and has had no issues.
It also conflicts with https://github.com/lightning/bolts/pull/932
which suggests you *should* fail when you receive an error.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We now let gossipd do it.
This also means there's nothing left in 'struct per_peer_state' to
send across the wire (the fds are sent separately), so that gets
removed from wire messages too.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
As connectd handles more packets itself, or diverts them to/from gossipd,
it's the only place we can implement the dev_disconnect logic.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Now connectd is doing the crypto, we can use normal wire io. We
create helper functions to clearly differentiate between "peer" comms
and intra-daemon comms though.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
connectd is going to end up using this do demux; make it fast and complete.
Fixing this reveals a problem in openingd: it now extracts the channel_id
from funding_signed (which is where we transition off the temporary), and
gets upset. So fix that.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We need to stash/save the amount of the lease fees on a leased channel,
we do this by re-using the 'push' amount field on channel (which is
technically correct, since we're essentially pushing the fee amount to
the peer).
Also updates a bit of how the pushes are accounted for (pushed to now
has an event; their channel will open at zero but then they'll
immediately register a push event).
Leases fees are treated exactly the same as pushes, except labeled
differently.
Required adding a 'lease_fee' field to the inflights so we keep track of
the fee for the lease until the open happens.
And turn "" includes into full-path (which makes it easier to put
config.h first, and finds some cases check-includes.sh missed
previously).
config.h sets _GNU_SOURCE which really needs to be done before any
'#includes': we mainly got away with it with glibc, but other platforms
like Alpine may have stricter requirements.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This is from 6e99c5feaf60cb797507d181fe583224309318e9
We renamed the enctlv field to encrypted_recipient_data in the spec, and the
new onion_message is message 513. We don't handle it until the next patch.
Two renames:
1. blinding_seed -> blinding_point.
2. enctlv -> encrypted_recipient_data.
We don't do a compat cycle for our JSON APIs for these experimental
features only used by our own plugins, we just rename.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Temporarily disable sendpay_blinding test which uses obsolete onionmsg;
there's still some debate on the PR about how blinded HTLCs will work.
Changelog-EXPERIMENTAL: onionmessage: removed support for v0.10.1 onion messages.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
To reduce the surface area of amount of a channel balance that can be
eaten up as htlc dust, we introduce a new config
'--max-dust-htlc-exposure-msat', which sets the max amount that any
channel's balance can be added as dust
Changelog-Added: config: new option --max-dust-htlc-exposure-msat, which limits the total amount of sats to be allowed as dust on a channel
By popular merge-hell demand.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Changed: Build: Python is now required to build, as generated files are no longer checked into the repository.
One change from the obsolete version handling, gossipd will no longer send
forwarding onion msgs to lightningd, but will forward it directly.
That was the effect before, anyway.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Before:
Ten builds, laptop -j5, no ccache:
```
real 0m36.686000-38.956000(38.608+/-0.65)s
user 2m32.864000-42.253000(40.7545+/-2.7)s
sys 0m16.618000-18.316000(17.8531+/-0.48)s
```
Ten builds, laptop -j5, ccache (warm):
```
real 0m8.212000-8.577000(8.39989+/-0.13)s
user 0m12.731000-13.212000(12.9751+/-0.17)s
sys 0m3.697000-3.902000(3.83722+/-0.064)s
```
After:
Ten builds, laptop -j5, no ccache: 8% faster
```
real 0m33.802000-35.773000(35.468+/-0.54)s
user 2m19.073000-27.754000(26.2542+/-2.3)s
sys 0m15.784000-17.173000(16.7165+/-0.37)s
```
Ten builds, laptop -j5, ccache (warm): 1% faster
```
real 0m8.200000-8.485000(8.30138+/-0.097)s
user 0m12.485000-13.100000(12.7344+/-0.19)s
sys 0m3.702000-3.889000(3.78787+/-0.056)s
```
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This is best-practice (to ensure prototypes match up), but there were a
few places we didn't (at least, directly). Make it a requirement,
either of form "foo.h" or <dir/foo.h>.
The noise is the change to our print templates.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This was just a minor leak, found by CI for
test_openchannel_hook_chaining. We didn't call negotiation_aborted
which frees various fields: negotiation_failed() does that for us.
```
MEMLEAK: 0x55b0f2d5f3c8
label=common/channel_type.c:19:struct channel_type
backtrace:
ccan/ccan/tal/tal.c:442 (tal_alloc_)
common/channel_type.c:19 (channel_type_none)
common/channel_type.c:27 (channel_type_static_remotekey)
common/channel_type.c:136 (channel_type_accept)
openingd/openingd.c:844 (fundee_channel)
openingd/openingd.c:1240 (handle_peer_in)
openingd/openingd.c:1510 (main)
parents:
openingd/openingd.c:1414:struct state
```
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
e.g. you can negotiate anchor_outputs, but still ask for a
non-anchor-output channel.
If/when we make those features compulsory, downgrade will
not be allowed.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
It was merged (but this doesn't update the BOLT quotes, that's in another patch).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Added: Protocol: We now send and support channel_type in channel open (not dual-funding though).
Currently we actually insist it's the default, but in future it could be
different.
We also need to tell openingd what the channel_type was, if we resume
via openingd_funder_complete().
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We make it a first-class citizen internally, even though we won't use
it over the wire (at least, non-experimental builds). This scheme
follows the latest draft, in which features are flagged compulsory.
We also add several helper functions.
Since uses the *even* bits (as per latest spec), not the *odd* bits,
we have some other fixups.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We want to use this to handle the simple description for channel_type.
It also needs to handle variable-size types (just like subtypes).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Openingd can query them itself (as dualopend already does). And move
the two feature args next to each other on the wire.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This touches a lot of text, mainly to change "if `option_anchor_outputs`"
to "if `option_anchors`"
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This check is going away anyway (only Electrum enforced it), but we
know that all wumbo peers expect large HTLCs to work today.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Added: Protocol: Allow sending large HTLCs if peer offers option_support_large_channel (> 4294967295msat)
dualopend doesn't always listen to lightningd messages, so it would
sometimes hang at the end of tests.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
1. We assumed an empty upfront_shutdown_script TLV would become NULL:
RPC call failed: method: fundchannel, payload: {'id': '022d223620a359a47ff7f7ac447c85c46c923da53389221a0054c11c1e3ca31d59', 'amount': 1000000, 'announce': True}, error: {'code': -1, 'message': 'They sent error channel e7c2d5d14462fe269631418fbfc3db327843382e6a2a5a9c2991d2d6ba31d9f5: Unacceptable upfront_shutdown_script ', 'data': {'id': '022d223620a359a47ff7f7ac447c85c46c923da53389221a0054c11c1e3ca31d59', 'method': 'fundchannel_start'}}"
2. We were assuming an empty enctlv would become NULL, too.
We should not have done this (there's a semantic difference between
"empty" and not-present for TLVs), so prepare for the change.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
with channel leases, we use the open_tlv data after a round of talking
to the peer (which clears out the tmpctx). It'll get cleaned up
when this peer opens/fails.
