Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-changed: JSON API: `htlc_accepted` hook has `type` (currently `legacy` or `tlv`) and other fields directly inside `onion`.
Changelog-deprecated: JSON API: `htlc_accepted` hook `per_hop_v0` object deprecated, as is `short_channel_id` for the final hop.
--dev-force-tmp-channel-id flag takes a 64-character hex string
to use as the temporary channel id. Useful for spec tests
[ Fixed crash in non-DEVELOPER mode --RR ]
Changelog-None
If a 'upfront_shutdown_script' was specified, show the address +
scriptpubky in `listpeers`
Changelog-added: JSON API: `listpeers` channels now include `close_to` and `close_to_addr` iff a `close_to` address was specified at channel open
The 'rpc_command' hook allows a plugin to take over any RPC command.
It sends the complete JSONRPC request to the plugin, which can then respond
with :
- {'continue'}: executes the command normally
- {'replace': {a_jsonrpc_request}}: replaces the request made
- {'return': {'result': {}}}: send a custom response
- {'return': {'error': {}}}: send a custom error
This way, a plugin can modify (/reimplement) or restrict the usage of
any of `lightningd`'s commands.
Changelog-Added: Plugin: A new plugin hook, `rpc_command` allows a plugin to take over `lightningd` for any RPC command.
It's less helpful, sure, but it's far better than someone
sending me their output and leaking this information.
Fixes: #3242
Reported-by: @JavierRSobrino
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
I was wondering why TAGS was missing some functions, and finally
tracked it down: PRINTF_FMT() confuses etags if it's at the start
of a function, and it ignores the rest of the file.
So we put PRINTF_FMT at the end, but that doesn't work for
*definitions*, only *declarations*. So we remove it from definitions
and add gratuitous declarations in the few static places.1
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Feerate changes are asymmetric, as they can only be sent by the funder.
For FUNDER, the remote feerate is set when upon send of
commitment_signed, and the local feerate is set on receipt of
revoke_and_ack.
For non-funder, the local feerate is set on receipt of
commitment_signed, and the remote feerate set on send of
revoke_and_ack. In our code, these two happen together.
channeld gets this right, but lightningd ignored the funder/fundee
distinction, and as a result, receipt of a commitment_signed by the
funder altered fees in the database. If there was a reconnection
event or restart, then these (incorrect) values would be used, causing
us to complain about a 'Bad commit_sig signature' and close the
channel.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
A 'Bad commit_sig signature' was reported by @Javier on Telegram and
@DarthCoin. This was between two c-lightning peers, so definitely our fault.
Analysis of this message revealed the signature was using the wrong
feerate. I finally managed to make a test case which triggered this.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Takes advantage of upfront-shutdown-script to permit users to
specify the close-to address for a channel at open, by adding
a `close_to` field to `fundchannel_start`.
Note that this only is in effect if `fundchannel_start` returns
with `close_to` set -- otherwise, peer doesn't
support `option_upfront_shutdown_script`.
*If* we know the key has signed something else (as is the case for
channel_announcement) then we can effectively trust the key derivation.
This matches how LND's VerifyMessage works, though in the next patch
we will document it exactly.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
I wanted to call it verifymessage, but then I read the LND API for that
and wanted nothing to do with it!
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
I had a report of a 0.7.2 user whose node hadn't appeared on 1ml. Their
node_announcement wasn't visible to my node, either.
I suspect this is a consequence of recent version reducing the amount of
gossip they send, as well as large nodes increasingly turning off gossip
altogether from some peers (as we do). We should ignore timestamp filters
for our own channels: the easiest way to do this is to push them out
directly from gossipd (other messages are sent via the store).
We change channeld to wrap the local channel_announcements: previously
we just handed it to gossipd as for any other gossip message we received
from our peer. Now gossipd knows to push it out, as it's local.
This interferes with the logic in tests/test_misc.py::test_htlc_send_timeout
which expects the node_announcement message last, so we generalize
that too.
[ Thanks to @trueptolmy for bugfix! ]
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This is mainly an internal-only change, especially since we don't
offer any globalfeatures.
However, LND (as of next release) will offer global features, and also
expect option_static_remotekey to be a *global* feature. So we send
our (merged) feature bitset as both global and local in init, and fold
those bitsets together when we get an init msg.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
I thought LND had a bug, but turns out it doesn't like out-of-order
short_channel_ids: in fact, the spec says they have to be in order!
This means we use uintmap instead of a htable for unknown_scids and
stale_scids so they're nicely ordered.
But our nodes-missing-announcements probe is harder since they can
also contain duplicates: we switch that to iterate through channels
rather than nodes.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This patch adds a channel_id parameter to allow for specifying
channels that are lacking a short_channel_id.
Useful in the case where a peer has 1) multiple channels (ONCHAIN etc)
and 2) a channel where the funding transaction hasn't been
broadcast/mined.
This splits maybe_create_hsm_secret() in two parts (either encrypted
or in clear) for clarity, and adds an encryption detection in load_hsm().
There are actually three cases if an encryption key is passed:
- There is no hsm_secret => just create it and store the encrypted seed
- There is an encrypted hsm_secret => the provided key should be able to
decrypt the seed, if the wrong key is passed libsodium will nicely error
and hsmd will exit() to not throw a backtrace (using status_failed() as for
other errors) at the face of an user who mistyped its password.
- There is a non-encrypted hsm_secret => load the seed, delete the
hsm_secret, create the hsm_secret, store the encrypted seed.
Add a new startup option which will, if set, prompt the user for a
password to derive a key from. This key will later be used to encrypt
and/or decrypt `hsm_secret`.
This was made a noarg option even if it would have been preferable to
let the user the choice of how to specify the password. Since we have
to chose, better to not let the password in the commands history.
Command format: close id [unilateraltimeout] [destination]
Close the channel with peer {id}, forcing a unilateral
close after {unilateraltimeout} seconds if non-zero, and
the to-local output will be sent to {destination}. If
{destination} isn't specified, the default is the address
of lightningd.
Also change the pylightning:
update the `close` API to support `destination` parameter
`shutdown_scriptpubkey[REMOTE]` is original remote_shutdown_scriptpubkey;
`shutdown_scriptpubkey[LOCAL]` is the script used for "to-local" output when `close`. Add the default is generated form `final_key_idx`;
Store `shutdown_scriptpubkey[LOCAL]` into wallet;
We have split the iteration over the txs and the output in different
functions, so pushing the annotation down, while keeping the transaction
addition atop. This showcases the need to not have the txid reference the
transactions.id in the DB: we annotate in a function that doesn't have the tx
index context, but only add the TX after we have finished extracting.
WIRE_REQUIRED_CHANNEL_FEATURE_MISSING anticipates a glorious Wumbo future,
and is closer to correct (it's a PERM failure).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Make --announce-addr with autotor: also
a meaningful use case.
The option --announce-addr=autotor: is more
intuitive than to use the --addr=autotor: option
Signed-off-by: Saibato <saibato.naga@pm.me>
Declare opt_add_addr at top of option.c
We we use opt_add_addr and opt_announce_addr vice versa.
To make compiler happy, we declare it at top.
Signed-off-by: Saibato <saibato.naga@pm.me>
Currently the only source for amount_asset is the value getter on a tx output,
and we don't hand it too far around (mainly ignoring it if it isn't the
chain's main currency). Eventually we could bubble them up to the wallet, use
them to select outputs or actually support assets in the channels.
Since we don't hand them around too widely I thought it was ok for them to be
pass-by-value rather than having to allocate them and pass them around by
reference. They're just 41 bytes currently so the overhead should be ok.
Signed-off-by: Christian Decker <@cdecker>
We now have a pointer to chainparams, that fails valgrind if we do anything
chain-specific before setting it.
Suggested-by: Rusty Russell <@rustyrussell>
The fundchannel plugin needs to know how to build a transaction, so we need to
tell it which chainparams to use. Also adds `chainparams` as a global, since
that seems to be the way to do things in plugins.
Turns out that if we have the init message contain both the chainparams as
well as a transaction that needs to be parsed we need to set the parser to
elements mode before we reach the transaction...
Skipping coinbase transactions and ensuring that the transaction is serialized
correctly when sending it onwards.
Signed-off-by: Christian Decker <decker.christian@gmail.com>
The header is not a contiguous section of memory in elements, and it is of
variable length, so the simple trick of hashing in-memory data won't work
anymore. Some of the datafields would have been wrong on big-endian machines
anyway, so this is better anyway.
Signed-off-by: Christian Decker <decker.christian@gmail.com>
Using a global variable is a bit lazy, but weaving the network type through
the entire stack is a daunting task. Maybe we can make that happen at a later
stage.
Most of the changes in `chainparams.c` are just formatting the
`genesis_blockhash` a bit nicer (`clang-format` to the rescue).
Signed-off-by: Christian Decker <decker.christian@gmail.com>
The Fairy Tail version of .onion option calls on cmdline
reroute the call to --announce-addr or just drop it in case of bind.
Signed-off-by: Saibato <saibato.naga@pm.me>
And make a function for the 'rescan' subcommand so that we are
consistent and have only subcommand logic in the main function,
which return command_still_pending() in any case (but 'stop').
patched-by: @rustyrussell
This does the same as for the 'start' subcommand for the 'startdir'
one.
Note that we could fail to start the last plugin of a directory, but
have succesfully started the precedent plugins. This will make us return
an error to the user while some of the plugins have been started, but we
still don't end up in a transient state with
half-configured-half-errored plugins.
This remove the reliance on startup plugins' function "plugin_start" in
order to use a distinct runtime path for a dynamically started plugin,
which will allow startup plugins' code to be (almost) agnostic of
dynamic plugins.
This also makes the 'start' subcommand return only if the plugin is
either started, or killed : no weird middle state where the plugin
mishbehaving could crash lightningd.
With enable-autotor-v2 defined in cmdline the default behavior to create
v3 onions with the tor service call, is set to v2 onions.
Signed-off-by: Saibato <saibato.naga@pm.me>
I was seeing some accidental pruning under load / Travis, and in
particular we stopped accepting channel_updates because they were 103
seconds old. But making it too long makes the prune test untenable,
so restore a separate flag that this test can use.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We should never open more than 1024 file descriptors anyway, and under some
situations, namely running as root or in docker, would give us huge
allowances. This then results in a huge, unneeded, cleanup for subprocesses,
which we use a lot.
Fixes#2977
The math is a bit tricky, so encapsulate it.
Includes the extra 'e' in 'announcable' as noted by @cdecker :)
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This will let gossipd be more intelligent about gossiping before we're
synced, and also it might know how far behind we are.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Will be demuxed into starting the selected DB backend in one of the next
commits. Defaults to the old database location.
Signed-off-by: Christian Decker <decker.christian@gmail.com>
It's generally clearer to have simple hardcoded numbers with an
#if DEVELOPER around it, than apparent variables which aren't, really.
Interestingly, our pruning test was always kinda broken: we have to pass
two cycles, since l2 will refresh the channel once to avoid pruning.
Do the more obvious thing, and cut the network in half and check that
l1 and l3 time out.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
The simplest case is to explicitly load it when we see it's been
set.
This involves neatening the default config setup, to remove it from
opt_parse_from_config() and into the caller. It also seems we don't
need to call it anymore before parsing early options: none of them
need ld->config set.
Closes: #3030
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
There are some more #if DEVELOPER one-liners coming, this makes them
clear, but still lets them stand out.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
