We should use capability tests for states (can you add htlcs?) rather than vague
descriptions (are you closing?).
And as much as possible, use switch () statements to force us to think
about all the cases, especially when we add new states!
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Not just if htlc addition is too slow, make this the default. dual-open's txabort
is excluded, however.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
And require --developer to use them.
Also refuse redirection to deprecated APIs if deprecated APIs are disabled!
Changelog-Removed: `dev-sendcustommsg` (use `sendcustommsg`, which was added in v0.10.1)
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Explicitly allow all-zero in the onion_hash: we didn't do anything except log if it was unexpected anyway.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Don’t send the funding spend to onchaind if we detect it in inflights (aka. a splice). While we already prevented onchaind_funding_spent from being called directly, the call to wallet_channeltxs_add meant onchaind_funding_spent would be called *anyway* on restart. This is now fixed.
Additionally there was a potential for a race problem depending on the firing order of the channel depth and and funding spent events.
Instead of requiring these events fire in a specific order, we make a special “memory only” inflight object to prevent the race regardless of firing order.
Changelog-Fixed: Splice: bugfix for restart related race condition interacting with adversarial close detection.
I noticed this while debugging an issue with ACINQ, that we got upset,
but didn't trigger a reconnect cycle.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Fixed: Protocol: We now close connection with a peer if adding an HTLC times out (which may be a TCP connectivity issue).
Update the lightningd <-> channeld interface with lots of new commands to needed to facilitate spicing.
Implement the channeld splicing protocol leveraging the interactivetx protocol.
Implement lightningd’s channel_control to support channeld in its splicing efforts.
Changelog-Added: Added the features to enable splicing & resizing of active channels.
Update gossip routiens and various other hecks on the channel state to consider AWAITING_SPLICE to be routable and treated similar to CHANNELD_NORMAL.
Small updates to psbt interface
Changelog-None
This cause of cascading failure was pointed out by @t-bast: if fees spike and
you don't timeout an outgoing onchain HTLC, you should nonetheless fail the incoming htlc
because otherwise the incoming peer will close on you.
Of course, there's a risk of losing funds, but this only happens if you weren't going to get the HTLC spend in time anyway. And it would also catch any other reason that the downstream onchain goes wrong, containing the damage.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Reported-by: @t-bast
Changelog-Fixed: Protocol: We will close incoming HTLCs early if the outgoing HTLC is stuck onchain long enough, to avoid cascating failure.
We usually have access to `ld`, so avoid the global.
The only place generic code needs it is for the json command struct,
and that already has accessors: add one for libplugin and lightningd
to tell it if deprecated apis are OK.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We were debugging a number of issues related to the forwarding logic,
when using public scids on private channels, and we noticed that we
are very verbose everywhere, except where it counts, i.e., what
decisions are being taken. So we add a couple of debug logs, and a
final info one that tells the operator which resolution was chosen in
the end.
In particular:
- Bolt 4: add route blinding construction
- Bolt 4: add blinded payments
And this means it's not experimental, so we can turn it on
by default!
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Added: Protocol: blinded payments are now supported by default (not just with `--experimental-onion-messages`)
"Allow nodes to overshoot final htlc amount and expiry (#1032)"
Note that this also renamed `min_final_cltv_expiry` to the more-correct
`min_final_cltv_expiry_delta`.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
"BOLT 4: Remove legacy format, make var_onion_optin compulsory."
This also renamed the redundant "tlv_payload" to "payload", so we
replace "tlv_tlv_payload" with "tlv_payload" everyhere!
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
```
----------------------------- Captured stderr call -----------------------------
Sending onchaind an invalid message 03ed00000000000000004e52a9129a66619d6809b1024eb9a0159f173a988f3a5d0bdd2447b4fcc24cef
lightningd: FATAL SIGNAL 6 (version 3c57147-modded)
```
The channel state can also be `FUNDING_SPEND_SEEN` if onchaind is still
starting up.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We didn't actually populate them properly, and the real annotations
are on inputs and outputs.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-EXPERIMENTAL: JSON-RPC: `listtransactions` `channel` and `type` field removed at top level.
```
make check-source-bolt CHECK_BOLT_PREFIX="--prefix=BOLT-route-blinding" BOLTVERSION=guilt/offers
```
Other than textual changes, this does:
1. Ensures we put total_amount_msat in onion final hop (reported by @t-bast).
2. Require that they put total_amount_msat in onion final hop.
3. Return `invalid_onion_blinding` exactly as defined by the spec (i.e. less
aggressive when we're the final hop) (also reported by @t-bast, but I already
knew).
See: #5823
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-EXPERIMENTAL: `offers` breaking blinded payments change (total_amount_sat required, Eclair compat)
You can use rs->nextcase, but we don't always keep that around, so
keep a flag in onion_payload.
We'll use this in the "do we need to return a blinded error code"
patch.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
```
E Global errors:
E - Node /tmp/ltests-adkwu44c/test_logging_1/lightning-2/ has memory leaks: [
E {
E "backtrace": [
E "ccan/ccan/tal/tal.c:442 (tal_alloc_)",
E "lightningd/peer_control.c:2203 (load_channels_from_wallet)",
E "lightningd/lightningd.c:1105 (main)"
E ],
E "label": "lightningd/peer_control.c:2203:struct htlc_in_map",
E "parents": [
E "lightningd/lightningd.c:107:struct lightningd"
E ],
E "value": "0x55d920a345e8"
E }
E ]
```
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This current spec is not strict enough: we might complain that the
next peer is not connected, for example, which leaks information.
So return WIRE_INVALID_ONION_BLINDING even if we're the first hop
on the path, to be safe.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This makes us match eed2ab0c30ad7f93e3b2641ca9d7ade32f3d121d
("Use `invalid_onion_blinding` everywhere").
1. Numerous typographical changes.
2. Make sure we *always* return WIRE_INVALID_ONION_BLINDING if
we're in a blinded path.
3. Handle p->total_msat correctly (MPP payments).
4. Reorganize blinding handling just like spec order.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We still have an "enum forward_style" for the database, where old-style
forwards can still exist.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Removed: Protocol: we no longer forward HTLCs with legacy onions.
We have to allow them (as otherwise `fees_collected_msat` in getinfo breaks),
but it means that actually, in_htlc_id might be missing in listforwards
(also, out_htlc_id might be missing, which we didn't catch before).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Fixes: #5628
Otherwise what the hook sees is actually a lie, and if it sets it
we might override it.
The side effect is that we add an explicit "forward_to" field, and
allow hooks to override it. This lets a *hook* control channel
choice explicitly.
Changelod-Added: Plugins: `htlc_accepted_hook` return can specify what channel to forward htlc to.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Using `listfowards` for this wrong; expose this directly if people
care (and unlike listforwards, which could be deleted, we have to
remember these while the channel is still open!).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Added: JSON-RPC: `listhtlcs` new command to list all known HTLCS.
And document that we never know payment_hash.
Changelog-Added: JSON-RPC: `listforwards` now shows `in_htlc_id` and `out_htlc_id`
Changelog-Changed: JSON-RPC: `listforwards` now never shows `payment_hash`; use `listhtlcs`.
This includes the recommendation that we use 10 minute grace period,
so add quotes to where we use that.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We can do this now the function is cleaned up.
Always better to do the work inside param() since then `check`
gets the benefit.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Removed: Old order of the `status` parameter in the `listforwards` rpc command (deprecated in v0.10.2)
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Again, we should use the real channel_type, but we approximate.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Added: Protocol: private channels will only route using short-channel-ids if channel opened with option_scid_alias-supporting peer.
