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
This will allow nodes (with log-level=debug) to gather how many payments
are made without payment_secrets. We need to know this so we know when
we can make them compulsory.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We let the plugin decide what feerate to accept/whether or not to add
funds to the open. To aid this decision, we also send the plugin what we
(c-lightning) currently have as our max and min acceptable feerates.
We also now use these as our default for max/min acceptable feerate
range when sending an openchannel offer to a peer.
In the future, it might be a good idea to make these more easily
changeable, either via a config setting (?) or a command param.
The previous dev-force-features forced you to explicitly declare every
desired feature bit in an array, for each set.
Here, we allow you to also denote adding/subtracing a feature bit
by just passing in the number of the bit to flip and the direction to
turn it. e.g.
'dev-force-features': '+223'
Will turn on opt_dual_fund/odd.
'dev-force-features': '-16'
Will flag off opt_basic_mpp.
"make clean" removes all object files listed in $(ALL_OBJS), which is derived from $(ALL_C_SOURCES).
Source files in $(LIGHTNINGD_SRC_NOHDR) are missing from $(ALL_C_SOURCES) therefore some object files are not removed by "make clean".
This commit fixes this point.
Signed-off-by: YOSHIDA Masanori <masanori.yoshida@gmail.com>
Changelog-None
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>
This lets callers enable notifications; we won't send any if they don't.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Added: JSON-RPC: `notifications` command to enable notifications.
And make caller of json_stream_forward_change_id use it, since
we're going to reuse that.
Also call json_out_finished here, so next object doesn't have a ","
prepended.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Note that check-whitespace and check-bolt already do this, so we
can eliminate redundant lines in common/Makefile and bitcoin/Makefile.
We also include the plugin headers in ALL_C_HEADERS so they get
checked.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This will allow us to build complex, multi-peer transactions, with
easeTM!
Changelog-Added: EXPERIMENTAL, Plugins: `openchannel_peer_sigs` notification, which contains a peer's signatures for the funding transaction (`opt_dual_fund`)
Prior to this patch update, we expected a client to call
`openchannel_signed` before checking for peer's tx-sigs messages on the
wire.
When moving to a 'multifundchannel' approach, we'll need to be able to
collect sigs from our peers before sending our tx_sigs message. There's
no strict ordering on when tx-sigs messages are sent/received, so this
is fine.
To do this, we go ahead and start up channeld as soon as
commitment_sigs are secured, so that we process incoming tx-sigs from
our peers as soon as we get them.
This is handy/necessary for getting multifundchannel to work, as we need
to know what output to tell all the other peers about.
Changelog-Added: Experimental!! JSON-RPC: openchannel_init returns a field `funding_serial` that indicates the serial_id of the funding output in the provided PSBT
There's a few structs/wire calls that only exist under experimental features.
These were in a common file that was shared/used a bunch of places but
this causes problems. Here we move one of the problematic methods back
into `openingd`, as it's only used locally and then isolate the
references to the `witness_stack` in a new `common/psbt_internal` file.
This lets us remove the iff EXP_FEATURES inclusion switches in most of
the Makefiles.
Rusty pointed out that having an empty channel_id is suboptimal; adding
another call is probably the right idea rather than re-using an existing
one.
Suggested-By: @rustyrussell
...right time.
We re-send the tx_sigs on start/init/reconnect until we've gotten a
funding_locked from our peer. We also build it in channeld now, instead
of in dualopend, and don't pass in a message for them anymore
`openchannel_signed` and `openchannel_update` which allow a user to
continue a openchannel or kick off the completion of a openchannel.
`openchannel_update` should be called until it returns with
`commitments_secured`.
`openchannel_signed` commands hang out across the openingd/channeld
boundary -- we don't return until we've successfully broadcast the
transaction (or timed out waiting for them to send a tx_sigs back).
We need the PSBT to create the finalized tx from once the peer's
tx_signatures are received. Since we're passing the PSBT, we no longer
need the secondary message to be passed, as it was derived from the
PSBT.
Also removes now unused witness serialization code
There are 3 commands for opening a channel with dualfunding.
`openchannel_init` is the first of these.
It initializes the open-channel dialog, and stops once we've run out of
updates (input/outputs) to send to the peer.
Great report from whitslack on this crash at startup:
```
2020-10-07T13:03:21.419Z **BROKEN** lightningd: FATAL SIGNAL 6 (version 0.9.1)
2020-10-07T13:03:21.419Z **BROKEN** lightningd: backtrace: common/daemon.c:51 (crashdump) 0x559fb67bcc76
2020-10-07T13:03:21.419Z **BROKEN** lightningd: backtrace: /var/tmp/portage/sys-libs/glibc-2.32-r2/work/glibc-2.32/signal/../sysdeps/unix/sysv/linux/x86_64/sigaction.c:0 ((null)) 0x7f61cdca8baf
2020-10-07T13:03:21.419Z **BROKEN** lightningd: backtrace: ../sysdeps/unix/sysv/linux/raise.c:50 (__GI_raise) 0x7f61cdca8b31
2020-10-07T13:03:21.419Z **BROKEN** lightningd: backtrace: /var/tmp/portage/sys-libs/glibc-2.32-r2/work/glibc-2.32/stdlib/abort.c:79 (__GI_abort) 0x7f61cdc92535
2020-10-07T13:03:21.419Z **BROKEN** lightningd: backtrace: /var/tmp/portage/sys-libs/glibc-2.32-r2/work/glibc-2.32/assert/assert.c:92 (__assert_fail_base) 0x7f61cdc9241e
2020-10-07T13:03:21.419Z **BROKEN** lightningd: backtrace: /var/tmp/portage/sys-libs/glibc-2.32-r2/work/glibc-2.32/assert/assert.c:101 (__GI___assert_fail) 0x7f61cdca1241
2020-10-07T13:03:21.419Z **BROKEN** lightningd: backtrace: lightningd/subd.c:750 (subd_send_msg) 0x559fb67a1c31
2020-10-07T13:03:21.419Z **BROKEN** lightningd: backtrace: lightningd/subd.c:745 (subd_send_msg) 0x559fb67a1c31
2020-10-07T13:03:21.419Z **BROKEN** lightningd: backtrace: lightningd/peer_htlcs.c:252 (local_fail_in_htlc) 0x559fb6798f77
2020-10-07T13:03:21.419Z **BROKEN** lightningd: backtrace: lightningd/peer_htlcs.c:1441 (onchain_failed_our_htlc) 0x559fb6798f77
2020-10-07T13:03:21.419Z **BROKEN** lightningd: backtrace: lightningd/onchain_control.c:339 (handle_missing_htlc_output) 0x559fb6786b9d
2020-10-07T13:03:21.419Z **BROKEN** lightningd: backtrace: lightningd/onchain_control.c:455 (onchain_msg) 0x559fb6786b9d
```
The problem is a channel with an onchaind can be in state FUNDING_STATE_SEEN,
because onchaind has started but not responded to init yet (which it does once it
has analyzed the commitment tx).
Channel B is onchain, and its onchaind fails the HTLC, and we try to send a msg
to channel A's onchaind as if it were channeld.
Explicitly check if it's channeld, rather than trying to see if it's onchaind.
Fixes: #4114
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Fixed: crash: assertion fail at restart when source and destination channels of an HTLC are both onchain.
