Instead of doing this weird chaining, just call them all at once and
use a reference counter.
To make it simpler, we return the subd_req so we can hang a destructor
off it which decrements after the request is complete.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Useful for accounting for missed/historical channel opens, to figure out
what the actual sat contribution from each peer is at a utxo level
Changelog-Added: JSONRPC: `listpeers` now includes a `pushed_msat` value. For leased channels, is the total lease_fee.
All build flags and (experimental) options make it hard to find
out what features are supported or enabled.
And the undocumented `--list-features-only`, does not account for all
our featurebits, for example bit 55 (keysend).
Changelog-Added: JSON-RPC: `getinfo` result now includes `our_features` (bits) for various Bolt #9 contexts
If we call update_channel_from_inflight *twice* with the same inflight, we
will get bad results. Using tal_steal() here was a premature optimization:
```
Valgrind error file: valgrind-errors.496395
==496395== Invalid read of size 8
==496395== at 0x22A9D3: to_tal_hdr (tal.c:174)
==496395== by 0x22B4B5: tal_steal_ (tal.c:498)
==496395== by 0x16A13D: update_channel_from_inflight (peer_control.c:1225)
==496395== by 0x16A4C7: funding_depth_cb (peer_control.c:1299)
==496395== by 0x182807: txw_fire (watch.c:232)
==496395== by 0x182AA9: watch_topology_changed (watch.c:300)
==496395== by 0x1290ED: updates_complete (chaintopology.c:624)
==496395== by 0x129BF4: get_new_block (chaintopology.c:835)
==496395== by 0x125EEF: getrawblockbyheight_callback (bitcoind.c:362)
==496395== by 0x176ECC: plugin_response_handle (plugin.c:584)
==496395== by 0x1770F5: plugin_read_json_one (plugin.c:690)
==496395== by 0x1772D9: plugin_read_json (plugin.c:735)
==496395== Address 0x89fbb08 is 24 bytes inside a block of size 104 free'd
==496395== at 0x483CA3F: free (in /usr/lib/x86_64-linux-gnu/valgrind/vgpreload_memcheck-amd64-linux.so)
==496395== by 0x22B193: del_tree (tal.c:421)
==496395== by 0x22B461: tal_free (tal.c:486)
==496395== by 0x16A123: update_channel_from_inflight (peer_control.c:1223)
==496395== by 0x16A4C7: funding_depth_cb (peer_control.c:1299)
==496395== by 0x182807: txw_fire (watch.c:232)
==496395== by 0x182AA9: watch_topology_changed (watch.c:300)
==496395== by 0x1290ED: updates_complete (chaintopology.c:624)
==496395== by 0x129BF4: get_new_block (chaintopology.c:835)
==496395== by 0x125EEF: getrawblockbyheight_callback (bitcoind.c:362)
==496395== by 0x176ECC: plugin_response_handle (plugin.c:584)
==496395== by 0x1770F5: plugin_read_json_one (plugin.c:690)
==496395== Block was alloc'd at
==496395== at 0x483B7F3: malloc (in /usr/lib/x86_64-linux-gnu/valgrind/vgpreload_memcheck-amd64-linux.so)
==496395== by 0x22AC1C: allocate (tal.c:250)
==496395== by 0x22B1DD: tal_alloc_ (tal.c:428)
==496395== by 0x22B3A6: tal_alloc_arr_ (tal.c:471)
==496395== by 0x22C094: tal_dup_ (tal.c:805)
==496395== by 0x12B274: new_inflight (channel.c:187)
==496395== by 0x136D4C: wallet_commit_channel (dual_open_control.c:1260)
==496395== by 0x13B084: handle_commit_received (dual_open_control.c:2839)
==496395== by 0x13B6AF: dual_opend_msg (dual_open_control.c:2976)
==496395== by 0x1809FF: sd_msg_read (subd.c:553)
==496395== by 0x218F5D: next_plan (io.c:59)
==496395== by 0x219B65: do_plan (io.c:407)
```
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.
It's weird to have connectd ask gossipd, when lightningd can just do it
and hand all the addresses together.
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>
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.
we used this originally to suppress duplicate issuance of coin-move
events; we're assuming that any plugin expects duplicate events though
(and knows how to de-dupe them), so we no longer need this logic.
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 was measured as a 95th percentile in our rough testing, thanks to
all the volunteers who monitored my channels.
Fixes: #4761
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Added: JSON-RPC: `setchannelfee` gives a grace period (`enforcedelay`) before rejecting old-fee payments: default 10 minutes.
```
E - Node /tmp/ltests-uf2g_5gd/test_sendinvoice_obsolete_1/lightning-1/ has memory leaks: [
E {
E "backtrace": [
E "ccan/ccan/tal/tal.c:442 (tal_alloc_)",
E "ccan/ccan/tal/tal.c:471 (tal_alloc_arr_)",
E "ccan/ccan/tal/str/str.c:91 (tal_vfmt_)",
E "ccan/ccan/tal/str/str.c:44 (tal_fmt_)",
E "common/wireaddr.c:232 (fmt_wireaddr_without_port)",
E "common/wireaddr.c:251 (fmt_wireaddr)",
E "common/wireaddr.c:208 (fmt_wireaddr_internal)",
E "common/wireaddr.c:221 (fmt_wireaddr_internal_)",
E "common/type_to_string.c:32 (type_to_string_)",
E "lightningd/peer_control.c:1433 (json_add_peer)",
E "lightningd/peer_control.c:1481 (json_listpeers)",
E "lightningd/jsonrpc.c:627 (command_exec)",
E "lightningd/jsonrpc.c:762 (rpc_command_hook_final)",
E "lightningd/plugin_hook.c:274 (plugin_hook_call_)",
E "lightningd/jsonrpc.c:850 (plugin_hook_call_rpc_command)",
E "lightningd/jsonrpc.c:949 (parse_request)",
E "lightningd/jsonrpc.c:1040 (read_json)",
E "ccan/ccan/io/io.c:59 (next_plan)",
E "ccan/ccan/io/io.c:435 (io_do_always)",
E "ccan/ccan/io/poll.c:300 (handle_always)",
E "ccan/ccan/io/poll.c:377 (io_loop)",
E "lightningd/io_loop_with_timers.c:21 (io_loop_with_timers)",
E "lightningd/lightningd.c:1112 (main)"
E ],
E "label": "common/wireaddr.c:232:char[]",
E "parents": [
E "common/json_stream.c:22:struct json_stream",
E "ccan/ccan/io/io.c:91:struct io_conn",
E "lightningd/lightningd.c:103:struct lightningd"
E ],
E "value": "0x56041b322a48"
E }
E ]
```
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This affects the range we offer even without quick-close, but it's
more critical for quick-close.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Added: JSONRPC: `close` now takes a `feerange` parameter to set min/max fee rates for mutual close.
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>
By default, we won't close a channel that we leased to a peer.
You can override this with the `force_lease_closed` flag.
Changelog-Added: JSON-RPC: close now has parameter to force close a leased channel (option_will_fund)
Using a 'feestep' is more restrictive than you'd want, instead we
enforce that the next feerate must be at least 1/64th more than the
last, but put no upper limit on it
Includes update to lnprototest changes
Contributed-By: Vincenzo Palazzo <vincenzopalazzodev@gmail.com>
Changelog-EXPERIMENTAL: Protocol: Replaces init_rbf's `fee_step` for RBF of v2 opens with `funding_feerate_perkw`, breaking change
Enable non-dev builds to send custom messages.
Preserves 'dev-' for compat-enabled builds.
Changelog-Changed: JSON-RPC: moved dev-sendcustommsg to sendcustommsg
This supports reestablish on a closed channel: we tell channeld to
respond to the reestablish message appropriately, then close the
channel.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
It handles all the cases of retransmission, and in the normal case
retransmits shutdown and immediately returns for us to run closingd.
This is actually far simpler and reduces code duplication.
[ Includes fixup to stop warn_unused_result from Christian ]
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Fixed: Protocol: We could get stuck on signature exchange if we needed to retransmit the final revoke_and_ack.
In general, it's better to omit a field than put in a 'null', and
putting variable-named fields in an object is also a bad idea.
This is reflected in how hard this is to express in JSON schema, too.
Others:
1. Remove the obsolete "funding": "LOCAL" from unopened channels, but add
"opener": "local" as used in normal channels.
2. htlc cltv_expiry is a u16.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Deprecated: JSON-RPC: `listfunds` `channels` `funding_allocation_msat` and `funding_msat`: use `funding`.
Changelog-Deprecated: JSON-RPC: `listfunds` `channels` `last_tx_fee`: use `last_tx_fee_msat`.
Changelog-Deprecated: JSON-RPC: `listfunds` `channels` `closer` is now omitted if it does not apply, not JSON `null`.
Prior to this, sending a v1 address (or, in fact, any random crap!)
would cause the unsupporting node to unilaterally close.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Annotating the htlc in `listpeers` with their current status, and
which plugin is currently holding on to them with their
`htlc_accepted` hook can help us debug where plugins may go wrong.
Changelog-Added: jsonrpc: HTLCs in `listpeers` are now annotated with a status if they are waiting on an `htlc_accepted` hook of a plugin.
Undocumented (caught by json schema!) if we discard channel because it
wasn't open yet, then close returned the empty object. Make it return
a new type in this case.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Added: JSONRPC: `close` returns `type` "unopened" if it simply discards channel instead of empty object.
If the peer is offline when we see the funding txid, we don't actually
update the channel's info. Here, we move it up to where the scid is set,
so that we always update the channel's funding_txid to the correct
(mined) information.
Trying to put all the disconnect logic into the same path was a dumb
idea. If you asked to reconnect but passed in an 'unsaved' channel, we
would not call the 'reconnect' code.
Instead, we make a differentiation between "unsaved" channels
(ones that we haven't received commitment tx for) and handle the
disconnect for these separate from where we want to do a reconnect.
We generally hang things off our JSON response (this pattern predates
tmpctx!) but sometimes it gets reported as a memleak. I'd prefer not
to mark JSON responses as "notleak", since they can be allocated for
a while), so use tmpctx here.
```
E ValueError:
E Node errors:
E Global errors:
E - Node /tmp/ltests-spnausnb/test_htlc_out_timeout_1/lightning-1/ has memory leaks: [
E {
E "backtrace": [
E "ccan/ccan/tal/tal.c:442 (tal_alloc_)",
E "ccan/ccan/tal/tal.c:471 (tal_alloc_arr_)",
E "wallet/wallet.c:1775 (wallet_state_change_get)",
E "lightningd/peer_control.c:922 (json_add_channel)",
E "lightningd/peer_control.c:1424 (json_add_peer)",
E "lightningd/peer_control.c:1454 (json_listpeers)",
E "lightningd/jsonrpc.c:643 (command_exec)",
E "lightningd/jsonrpc.c:767 (rpc_command_hook_final)",
E "lightningd/plugin_hook.c:275 (plugin_hook_call_)",
E "lightningd/jsonrpc.c:855 (plugin_hook_call_rpc_command)",
E "lightningd/jsonrpc.c:942 (parse_request)",
E "lightningd/jsonrpc.c:1033 (read_json)",
E "ccan/ccan/io/io.c:59 (next_plan)",
E "ccan/ccan/io/io.c:435 (io_do_always)",
E "ccan/ccan/io/poll.c:300 (handle_always)",
E "ccan/ccan/io/poll.c:377 (io_loop)",
E "lightningd/io_loop_with_timers.c:24 (io_loop_with_timers)",
E "lightningd/lightningd.c:1097 (main)"
E ],
E "label": "wallet/wallet.c:1775:struct state_change_entry[]",
E "parents": [
E "common/json_stream.c:29:struct json_stream",
E "ccan/ccan/io/io.c:91:struct io_conn",
E "lightningd/lightningd.c:116:struct lightningd"
E ],
E "value": "0x55c6b02150b8"
E }
E ]
```
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This means remembering the connection direction. We also use the address to try
to reconnect, which we shouldn't bother with if they connect to us.
For peers from the database, we currently always save the addr: we shouldn't really
do this if they connected to us, since it's not useful for reconnecting (we don't
show the addr in JSON reply to listpeers unless we're connected, so it's only an
internal issue). This is left for future work.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This matters: if we connected, the address is probably usable for future connections.
But if they connected, the port is probably not (but the IP address may be).
Changelog-Added: JSON-RPC: `connect` returns "direction" ("in": they iniatated, or "out": we initiated)
Changelog-Added: plugins: `peer_connected` hook and `connect` notifications have "direction" field.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
You can now activate dual-funded channels using the
`--experimental-dual-fund` flag
Changelog-Changed: Config: `--experimental-dual-fund` runtime flag will enable dual-funded protocol on this node
Otherwise, we might find an address other than the one given and
the user might think that address worked.
Fixes: #4185
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Added: JSON-RPC: `connect` returns `address` it actually connected to
Changelog-Added: lightningd: experimental-shutdown-wrong-funding to allow remote nodes to close incorrectly opened channels.
Changelog-Added: JSON-RPC: close has a new `wrong_funding` option to try to close out unused channels where we messed up the funding tx.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Looks like #4394 treated a symptom but not the root cause. We were
actually sending the message framed with the WIRE_CUSTOMMSG_OUT and
the length prefix over the encrypted connection to the peer. It just
happened to be a valid custommsg...
This fixes the issue, and this time I made sure we actually send the
raw message over the wire. However for backward compatibility we
needed to imitate the faulty behavior which is 90% of this patch :-)
Changelog-Fixed: plugin: `dev-sendcustommsg` included the type and length prefix when sending a message.
Changelog-Added: JSON-RPC: `listpeers` now includes 'last_feerate', 'next_feerate', 'initial_feerate' and 'next_fee_step' for channels in state DUALOPEND_AWAITING_LOCKIN
fixup! listpeers: include feerate info for RBF-candidate channels
We move over to the new "warning" paradigm, instead of using
an "rbf_fail" message.
Every failure is either a warning or an error; on warnings we
hang up and reconnect later, effectively resetting the state.
Users have no idea what they would pay for unilateral closes.
At least this gives them a clue!
Reported-by: @az0re on IRC.
Changelog-Added: JSON-RPC: `listpeers` now shows latest feerate and unilaral close fee.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We were always prefixing the `message` field with the internal type
prefix 0x0407, followed by the length prefix. Neither is needed since
the type being constant is of no interest to the plugin and the length
being implicit due to the JSON-encoding.
Reported-by: Ilya Evdokimov
Changelog-Fixed: plugin: The `custommsg` hook no longer includes the internal type prefix and length prefix in its `payload`
Changelog-Deprecated: plugin: The `message` field on the `custommsg` hook is deprecated in favor of the `payload` field, which skips the internal prefix.
Since we turned many errors into warnings, we want our tests to fail
when they happen unexpectedly. We make WARNING clear in the strings
we print, too, to help out.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
No more sending "all-channel" errors; in particular, gossipd now only
sends warnings (which make us hang up), not errors, and peer_connected
rejections are warnings (and disconnect), not errors.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Changed: Plugins: `peer_connected` rejections now send a warning, not an error, to the peer.
This is in line with the warnings draft, where all-zeroes in a
channel_id is no longer special (i.e. it will be ignored).
But gossipd would send these if it got upset with us, so it's best
practice to ignore them for now anyway.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Added: Protocol: we treat error messages from peer which refer to "all channels" as warnings, not errors.
rearranges the`peer_connected_hook_payload` definition to the location
where this is used in the file.
Fixes certain blanklines and linebreaks to make the code look nicer.
payload is owned by the peer, which is freed in this case, then we
free payload (again).
==1404== Invalid read of size 8
==1404== at 0x1F39E8: to_tal_hdr (tal.c:174)
==1404== by 0x1F43A4: tal_free (tal.c:479)
==1404== by 0x14B3D1: peer_connected_hook_cb (peer_control.c:1087)
==1404== by 0x15D6E9: plugin_hook_call_ (plugin_hook.c:288)
==1404== by 0x14B40E: plugin_hook_call_peer_connected (peer_control.c:1090)
==1404== by 0x14B5B8: peer_connected (peer_control.c:1135)
==1404== by 0x122FCF: connectd_msg (connect_control.c:310)
==1404== by 0x160291: sd_msg_read (subd.c:480)
==1404== by 0x15FBE7: read_fds (subd.c:308)
==1404== by 0x1E37D1: next_plan (io.c:59)
==1404== by 0x1E434E: do_plan (io.c:407)
==1404== by 0x1E438C: io_ready (io.c:417)
==1404== Address 0x2fcd2268 is 24 bytes inside a block of size 336 free'd
==1404== at 0x4C32D3B: free (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==1404== by 0x1F416E: del_tree (tal.c:421)
==1404== by 0x1F40F2: del_tree (tal.c:412)
==1404== by 0x1F442C: tal_free (tal.c:486)
==1404== by 0x148816: delete_peer (peer_control.c:120)
==1404== by 0x148899: maybe_delete_peer (peer_control.c:136)
==1404== by 0x13A970: destroy_uncommitted_channel (opening_common.c:29)
==1404== by 0x1F3BB1: notify (tal.c:240)
==1404== by 0x1F40A0: del_tree (tal.c:402)
==1404== by 0x1F442C: tal_free (tal.c:486)
==1404== by 0x13D3E9: peer_start_openingd (opening_control.c:911)
==1404== by 0x14B3C2: peer_connected_hook_cb (peer_control.c:1086)
==1404== Block was alloc'd at
==1404== at 0x4C31B0F: malloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==1404== by 0x1F3C1B: allocate (tal.c:250)
==1404== by 0x1F41B4: tal_alloc_ (tal.c:428)
==1404== by 0x14B454: peer_connected (peer_control.c:1105)
==1404== by 0x122FCF: connectd_msg (connect_control.c:310)
==1404== by 0x160291: sd_msg_read (subd.c:480)
==1404== by 0x15FBE7: read_fds (subd.c:308)
==1404== by 0x1E37D1: next_plan (io.c:59)
==1404== by 0x1E434E: do_plan (io.c:407)
==1404== by 0x1E438C: io_ready (io.c:417)
==1404== by 0x1E6552: io_loop (poll.c:445)
==1404== by 0x12E2AD: io_loop_with_timers (io_loop_with_timers.c:24)
Fixes: #4329
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Prior to this, all reconnect logic lived in channeld. If you
disconnected before we finished building a funding transaction, that was
no big deal. Now, however, we're waiting for the funding to lock in in
dualopend, instead of handing straight to channeld to wait.
So we need a way to restart dualopend.
v2 channel opens are going to happen over in dualopend. In order
to make sure that these don't end up in the wrong place/to keep track of
the difference between "waiting for sigs" and "have merely initiatlized
a channel", we add two new states to the channel state machine.
A channel that 'originates' in dualopend will only ever arrive at
channeld in the state CHANNELD_NORMAL.
Since this all stays in dualopend/dual_open_control, we can hold
onto the openchannel_signed command to wait for a response here locally.
Previously we were splitting across the channeld/openingd boundary.
Our new "decode" command will also handle bolt11. We make a few cleanups:
1. Avoid type_to_string() in JSON, instead use format functions directly.
2. Don't need to escape description now that JSON core does that for us.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This adds a `state_change` 'cause' to a channel.
A 'cause' is some initial 'reason' a channel was created or closed by:
/* Anything other than the reasons below. Should not happen. */
REASON_UNKNOWN,
/* Unconscious internal reasons, e.g. dev fail of a channel. */
REASON_LOCAL,
/* The operator or a plugin opened or closed a channel by intention. */
REASON_USER,
/* The remote closed or funded a channel with us by intention. */
REASON_REMOTE,
/* E.g. We need to close a channel because of bad signatures and such. */
REASON_PROTOCOL,
/* A channel was closed onchain, while we were offline. */
/* Note: This is very likely a conscious remote decision. */
REASON_ONCHAIN
If a 'cause' is known and a subsequent state change is made with
`REASON_UNKNOWN` the preceding cause will be used as reason, since a lot
(all `REASON_UNKNOWN`) state changes are a subsequent consequences of a prior
cause: local, user, remote, protocol or onchain.
Changelog-Added: Plugins: Channel closure resaon/cause to channel_state_changed notification
For compatibility, we only do this if `allow-deprecated-apis` is false
for now. Otherwise scripts parsing should use `grep -v '^# '` or
start using `-N none`.
Changelog-Added: JSON-RPC: `close` now sends notifications for slow closes (if `allow-deprecated-apis`=false)
Changelog-Deprecated: cli: scripts should filter out '^# ' or use `-N none`, as commands will start returning notifications soon
Fixes: #3925
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
