Commit Graph

141 Commits

Author SHA1 Message Date
niftynei
5ee4c9e46c df: patch for valgrind error
We were freeing the payload, which is then subsequently freed by the
plugin_hook caller. Whoops.

Now we pass through to the callback function and just clean up neatly.

------------------------------- Valgrind errors --------------------------------
Valgrind error file: valgrind-errors.406602
==406602== Invalid read of size 8
==406602==    at 0x12AC93: openchannel2_hook_cb (dual_open_control.c:669)
==406602==    by 0x12AF0A: openchannel2_hook_deserialize (dual_open_control.c:721)
==406602==    by 0x16EF0E: plugin_hook_callback (plugin_hook.c:186)
==406602==    by 0x169746: plugin_response_handle (plugin.c:514)
==406602==    by 0x169959: plugin_read_json_one (plugin.c:620)
==406602==    by 0x169B23: plugin_read_json (plugin.c:665)
==406602==    by 0x1F4076: next_plan (io.c:59)
==406602==    by 0x1F4C5B: do_plan (io.c:407)
==406602==    by 0x1F4C9D: io_ready (io.c:417)
==406602==    by 0x1F6F35: io_loop (poll.c:445)
==406602==    by 0x13D48D: io_loop_with_timers (io_loop_with_timers.c:24)
==406602==    by 0x143388: main (lightningd.c:1111)
==406602==  Address 0x75e7418 is 56 bytes inside a block of size 3,520 free'd
==406602==    at 0x483CA3F: free (in /usr/lib/x86_64-linux-gnu/valgrind/vgpreload_memcheck-amd64-linux.so)
==406602==    by 0x204FB0: del_tree (tal.c:421)
==406602==    by 0x20527E: tal_free (tal.c:486)
==406602==    by 0x122D68: delete_channel (channel.c:124)
==406602==    by 0x129291: channel_disconnect (dual_open_control.c:63)
==406602==    by 0x129364: channel_close_conn (dual_open_control.c:82)
==406602==    by 0x131CF6: peer_please_disconnect (connect_control.c:304)
==406602==    by 0x131DEB: connectd_msg (connect_control.c:326)
==406602==    by 0x172023: sd_msg_read (subd.c:509)
==406602==    by 0x1F4076: next_plan (io.c:59)
==406602==    by 0x1F4C5B: do_plan (io.c:407)
==406602==    by 0x1F4C9D: io_ready (io.c:417)
==406602==  Block was alloc'd at
==406602==    at 0x483B7F3: malloc (in /usr/lib/x86_64-linux-gnu/valgrind/vgpreload_memcheck-amd64-linux.so)
==406602==    by 0x204A39: allocate (tal.c:250)
==406602==    by 0x204FFA: tal_alloc_ (tal.c:428)
==406602==    by 0x123165: new_unsaved_channel (channel.c:209)
==406602==    by 0x130D34: peer_start_dualopend (dual_open_control.c:2985)
==406602==    by 0x15BD2A: peer_connected_hook_final (peer_control.c:1105)
==406602==    by 0x16F2E5: plugin_hook_call_ (plugin_hook.c:275)
==406602==    by 0x15BF5C: plugin_hook_call_peer_connected (peer_control.c:1155)
==406602==    by 0x15C16C: peer_connected (peer_control.c:1208)
==406602==    by 0x131E3B: connectd_msg (connect_control.c:332)
==406602==    by 0x172023: sd_msg_read (subd.c:509)
==406602==    by 0x171842: read_fds (subd.c:310)
2021-05-12 11:25:41 +09:30
niftynei
6dc954bb91 df-bugs: rm duplicate call to channeld
This gets called from channel_set_owner, which both `delete_channel` and
the `channel_fail_reconnect` pathways call.

Fixes crash
------------------------------------------------------ Captured stderr teardown -------------------------------------------------------
lightning_connectd: peer_disconnected unknown peer: 0266e4598d1d3c415f572a8488830b60f7e744ed9235eb0b1ba93283b315c03518 (version v0.10.0-144-gfaf98c9)
0x560e90d59d08 send_backtrace
        common/daemon.c:39
0x560e90d648a5 status_failed
        common/status.c:214
0x560e90d50e8f peer_disconnected
        connectd/connectd.c:1606
0x560e90d510d5 recv_req
        connectd/connectd.c:1662
0x560e90d5a266 handle_read
        common/daemon_conn.c:31
0x560e90d98ccb next_plan
        ccan/ccan/io/io.c:59
0x560e90d998b0 do_plan
        ccan/ccan/io/io.c:407
0x560e90d998f2 io_ready
        ccan/ccan/io/io.c:417
0x560e90d9bb8a io_loop
        ccan/ccan/io/poll.c:445
0x560e90d512c8 main
        connectd/connectd.c:1735
0x7fbdb828b0b2 ???
        ???:0
0x560e90d4a6dd ???
        ???:0
0xffffffffffffffff ???
        ???:0
2021-05-11 15:37:24 +09:30
niftynei
a293bf3269 rbf_channel hook: add channel_max_msat parameter
Changelog-Added: Plugins: `rbf_channel` hook has `channel_max_msat` parameter
2021-05-03 11:06:10 +09:30
niftynei
5a04dc185c openchannel2/rbf hooks: reject if response malformed
You gotta send over an amount if you send a psbt!
2021-05-03 11:06:10 +09:30
niftynei
7c76363e20 openchannel2: add channel_max_msat to openchannel2 hook payload
Changelog-Added: Plugins: add a `channel_max_msat` value to the `openchannel2` hook. Tells you the total max funding this channel is allowed to have.
2021-05-03 11:06:10 +09:30
niftynei
0ae2b0c33d dual-funding: bugfix, swapped commitment/funding feerates
Found via a protocol test, huzzah. And also whoops.
2021-04-16 15:33:44 +09:30
niftynei
d5bf6bb994 dual-fund: on witness failure, route through dualopend
We want to notify the peer that we've failed and why, as a courtesy.
2021-04-16 15:33:44 +09:30
Rusty Russell
3ccb6d6e7a Makefile: update to latest BOLT versions.
The main change which affects us is that 2016 blocks to forget a channel
is a fixed number in the spec; we make this clear by renaming the
(developer-only) max_funding_unconfirmed to dev_max_funding_unconfirmed
and making it compile DEVELOPER only.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2021-04-07 14:34:39 +09:30
niftynei
3e8f575f9e dual-funding: convert to runtime flag, --experimental-dual-fund
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
2021-03-25 20:05:11 +10:30
niftynei
fc64ebdb53 dual-funding: don't not update the state! log the issue and move on with
with your life
2021-03-17 10:25:18 +10:30
niftynei
dd696a7c05 df: move from warning to unusual
There are perfectly valid reasons for us to not have a command on return
(something went boom while sending them our sigs and we've now gotten
their sigs during a reconnect and subsequently broadcast the tx)
2021-03-17 10:25:18 +10:30
niftynei
61df08c50d df-broadcasts: use an impermanent marker to make sure we've sent things
This can result in us logging a warning if we've 1) dropped their sigs
response, 2) only us (the opener) added inputs, 3) and we broadcast on
their reconnect (when they retransmit their sigs)
2021-03-17 10:25:18 +10:30
niftynei
bec96a6c5b df: add openchannel_abort command
Allows us to clean up an in-progress open that we won't be completing

Changelog-Added: EXPERIMENTAL JSON-RPC: Permit user-initiated aborting of in-progress opens. Only valid for not-yet-committed opens and RBF-attempts
2021-03-15 14:08:44 +10:30
niftynei
015a0555d0 df: nit, update to use proper helper json function for channel_id 2021-03-15 14:08:44 +10:30
niftynei
8182e9cea4 df: update the openchannel2 parameter 'accepter' -> 'our'
The `rbf_channel` hook uses `our_funding_msat`, which is a nicer
and more easily understood than the `openchannel2`
`accepter_funding_msat`.

This updates the `openchannel2` hook to use the same nomenclature as
`rbf_channel`.
2021-03-12 14:00:19 +10:30
niftynei
a60d652517 df: add missing check for already set scriptpubkey
Noticed while adding the documentation for the hook.
2021-03-12 14:00:19 +10:30
niftynei
52b5dbb01d df: add doc for channel_open_failed notification
When a channel fails, send out a notification.

We were missing this notification in one case, which has been added.
2021-03-12 14:00:19 +10:30
niftynei
fc9e72b62b df-doc: add docs for openchannel_bump, more checks for valid psbt
Add docs for openchannel_bump, plus some checks that were missed for
verifying the amount is valid.
2021-03-12 14:00:19 +10:30
niftynei
a648ec827a df-doc: update error codes, make sure they're correct 2021-03-12 14:00:19 +10:30
niftynei
26e4bae9ce df: fail channel if peer sends witnesses that aren't paid for
The receiving node: ...
      - MUST fail the channel if:
        - the `witness_stack` weight lowers the effective `feerate`
          below the agreed upon transaction `feerate`
2021-03-09 14:55:05 +10:30
niftynei
31e3bdb42d df-spec: consolidate dual-funding patches, update feerate protocol
We consolidate to the latest/singular RFC patch for dual-funding, so
there's just a single patchfile for the change. Plus we move back to the
opener setting the desired feerate, the accepter merely declines to
participate if they disagree with the set rate.
2021-03-09 14:55:05 +10:30
niftynei
71164799f9 dual-fund: remove all references to PODLEs
We're punting on PODLE's for v1 of dual-funded channels
2021-03-09 14:55:05 +10:30
niftynei
8cc2919884 connectd: clean up the channel stuffs when we get a reconnect
If they've disconnected/reconnected we need to terminate all the
inflight stuff, plus go ahead and call 'disconnect' plugin trigger etc.
2021-03-06 15:03:56 +10:30
niftynei
97e64915c5 df: add (over zealous?) note about the usage of psbt_has_req_fields
Requested-In-Part-By: Rusty Russell @rustyrussell
2021-03-06 15:03:56 +10:30
niftynei
fc411a5925 df-memleak: expose memleak error and fix
We were getting a memleak error that the open_attempt isnt' being
cleaned up in test_rbf_reconnect_tx_construct. I had some trouble
reproducing it, so I removed the reliance on using `tmpctx` to clean it
up and was more surgical about cleaning it up inline.
2021-03-06 15:03:56 +10:30
niftynei
e0a2d47903 df-rbf: reconnection tests (init_rbf + ack_rbf) 2021-03-06 15:03:56 +10:30
niftynei
07153bff6a df: cleanup error handling on lightningd side
Make existing methods understand how unsaved channels work, re-work
errors so that we handle everything appropriately
2021-03-06 15:03:56 +10:30
niftynei
6c76dd338e channel: move inflight + feerate methods to channel.c
Need these more accessible for next patch, which moves the next_feerate
info into listpeers
2021-03-06 15:03:56 +10:30
niftynei
a23277af57 listpeers: include info on channels that are in-process
Channels that we're in negotiation for, but don't have a commitment
transaction saved for yet.
2021-03-06 15:03:56 +10:30
niftynei
ff069ff924 rbf: consolidate failure paths, use "warnings"
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.
2021-03-06 15:03:56 +10:30
niftynei
4fb95a9350 df-rbf: separate first-time channel save from update (RBF)
We can't "first save" a channel twice; instead we split in two and just
update the underlying channel on subsequent passes (RBFs)
2021-03-06 15:03:56 +10:30
niftynei
f22fed3fd5 df-rbf: only permit the channel initiator to init RBF
We're *mostly* set up for both sides doing RBF, except that it reverses
the callback flow (using the plugin vs RPC calls) and we're not
currently smart enough to flip between them gracefully
2021-03-06 15:03:56 +10:30
niftynei
a0cb7bd9b4 df: update reserve calculation
We can use the funding amount to derive the reserve requirement.
2021-03-06 15:03:56 +10:30
niftynei
2719ff8c3b df-rbf: handle rbf failures in lightningd 2021-03-06 15:03:56 +10:30
niftynei
d47358848f df-rbf: init an rbf for real, using openchannel_bumpfee
Reorg a bit of the RBF code so we use the same codepaths for we-init vs
they-init starts.
2021-03-06 15:03:56 +10:30
niftynei
063948d51a df-feerates: send back original + last known feerates
For calculating the next RBF attempt's feerate, we need some historical
information about the feerate used for this channel
2021-03-03 16:19:04 -06:00
niftynei
cf170c3909 df: allow for RBF_INIT in sigs states 2021-03-03 16:19:04 -06:00
niftynei
02d99acca1 dualopen: check that peer is connected for json calls
Before we start trying to talk to the peer, check that they're
connected.
2021-03-03 16:19:04 -06:00
niftynei
d8221aae76 df: update channel_id when opening; closing; disconnecting
We were missing the channel_id for accepter opens; it's also a good idea
to reset it to 0xFF when we disconnect totally
2021-03-03 16:19:04 -06:00
niftynei
6407ad334f df, channel: if a channel reconnects, but it's "unsaved" still
Go ahead and start dualopend, but as a fresh instance.
2021-03-03 16:19:04 -06:00
niftynei
779067d74c df: check inflights when deciding whether or not to allow command
We were missing the inflight state checks before allowing to proceed
with a command.
2021-03-03 16:19:04 -06:00
niftynei
da81d4bced channel: skip unsaved channels
Now that "peer->channels" contains `unsaved` channels, skip overthem
where appropriate
2021-03-03 16:19:04 -06:00
niftynei
de3599e98a subd: remove ctype (channel_type)
We only needed the type check for dual_open, since it was the only
subdaemon path that used two 'types' in the subd->channel field.
2021-03-03 16:19:04 -06:00
niftynei
1e9a900918 df: start of RPC for bumping the fee!
Doesn't call into dualopend yet
2021-03-03 16:19:04 -06:00
niftynei
d49db8ad41 df: do the right thing, now that we have a cancellation routine
removes a fixme
2021-03-03 16:19:04 -06:00
niftynei
3da2ae4d30 df: move to inflights for sigs/openchannel_signed parts of flow
We create an inflight once we get the commitment tx for a channel
instead of once we get the funding transaction signatures
2021-03-03 16:19:04 -06:00
niftynei
8b0e88dfb3 df: move initialization over to unsaved channel
uncommitted_channel -> channel (but unsaved)
2021-03-03 16:19:04 -06:00
niftynei
0951e2c941 df: get rid of unnecessary struct commit_rcvd 2021-03-03 16:19:04 -06:00
niftynei
95e81ce82c df: helper to find the last (most recent) inflight for a channel 2021-03-03 16:19:04 -06:00
niftynei
628f9df320 df: consolidate callbacks for opener/accepter, move to open_attempt 2021-03-03 16:19:04 -06:00