This is a rather simple hook that allows a plugin to take control over
HTLCs that were accepted, but weren't resolved as part of an invoice
or forwarded to the next hop yet.
The goal is to allow plugins to terminate a route early, perform
intermediate checks before the payment is accepted (check inventory or
service delivery before accepting in order to avoid a refund for
example) or handle an onion differently if it has a different
realm (cross-chain atomic swaps).
This doesn't implement serializing the payload or deserializing it,
instead just passes the full context along. The details for
serializing and deserializing will be implemented in a future commit.
Signed-off-by: Christian Decker <decker.christian@gmail.com>
Now we handle node_announcements properly, we have a failure case where we
try to move them when a channel is deleted while loading the store.
We're going to remove this soon, in favor of in-place delete, so
workaround this for now to avoid an assert() when we try to write to
the store while loading.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
When we first receive a channel_update, we write both the
channel_announcement and that channel_update to the store: we need
that first update so we can set the channel_announcement timestamp.
However, the channel_update can be replaced later. This means we can
have a channel_announcement, a node_update which relies on it, then
the channel_update later.
So move the "this applies to a pending announcement" check lower, where
gossip_store can use it too. Has a nice side-effect of avoiding
one lookup of the node id.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
First, we should have a channel_update so we actually do some compaction!
(Reported-by @SimonVrouwe). But we should also handle the cases where:
1. A channel_announcement is *not* directly followed by a
channel_update (happens when the channel_update is replaced).
2. A node_announcement predates a channel_update for the peer
(again, can happen once a channel_update is replaced).
3. A local/private channel_creation is not directly followed by an
update.
In addition, we might as well check that we can *load* such a store,
before compaction.
This checks the corner cases which occur in real gossip stores.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
It's possible that it hasn't got the node_announcement messages;
it will still list the nodes, however (the channel_announcement tells
it the nodes exist). Check for the alias field instead.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Basically, any "Bad" message from gossipd is something we should look
at. This covers failures loading the gossip_store, too!
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Our "-O3" CI check wasn't doing what I thought. But building with -flto
is hard with older gccs, so remove that.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Drive-by fix of CONFIGURATOR_CC setting when CC is overridden on cmdline
(not via env var).
Note that clang defines __GNUC__ (to 4) :(
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
`./configure CC=newcc --reconfigure` didn't set CC, because reconfigure
simply replaced all values: only make it replace undefined values.
Also, it didn't change COPTFLAGS or CWARNFLAGS, even if they were previously
the defaults (eg. --reconfigure --enable-developer).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Turns out the peer part of the spec no longer uses padding (it's used only
in the onion), and GCC-9 with -O3 warns we're padding NULL to memcpy.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
It turns out that we don't look at type when we return 0, but gcc isn't
quite smart enough for that. Initializing to -1 is good practice anyway
for the failure path.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Initialize infd to STDIN_FILENO if the input file argument is missing.
Caught with gcc version: 7.4.0
devtools/create-gossipstore.c: In function ‘main’:
devtools/create-gossipstore.c:130:9: error: ‘infd’ may be used
uninitialized in this function [-Werror=maybe-uninitialized]
while (read_all(infd, &be_inlen, sizeof(be_inlen))) {
Suggested-by: @ZmnSCPxj <https://github.com/ElementsProject/lightning/pull/2674#issuecomment-495617253>
Signed-off-by: William Casarin <jb55@jb55.com>
Fix a path where tal_free is called on an uninitialized variable
If the first `goto bad_total` executes, then that path has
uninitialized `short_route` but bad_total passes through to `out`
whose first call is tal_free(short_route).
This was noticed by a maybe-uninitialized heuristic on gcc 7.4.0:
gossipd/routing.c: In function ‘find_shorter_route’:
gossipd/routing.c:1096:2: error: ‘short_route’ may be used
uninitialized in this function [-Werror=maybe-uninitialized]
tal_free(short_route);
Reported-by: @ZmnSCPxj <https://github.com/ElementsProject/lightning/pull/2674#issuecomment-495617253>
Signed-off-by: William Casarin <jb55@jb55.com>
A new field is available in the command json object : 'category' (corresponding to whether "bitcoin", "channel", "network", "payment", "plugin", "utility", "developer"). We use it to printf commands ordered by categories.
credits @rustyrussel
A new string field is added to the command structure and is specified at the creation of each native command, and in the JSON created by 'json_add_help_command()'.
Before:
Plugin for invoice_payment returned non-result response
"subscriptions": [], "hooks": ["invoice_payment"]}}
�V
After:
Plugin for invoice_payment returned non-result response {"jsonrpc": "2.0", "id": 6, "error": "Error while processing invoice_payment: ValueError(\"invalid literal for int() with base 10: '5.0'\")"}
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
1. Add remote_ann_node_sigs and remote_bitcoin_sigs fields in channel_init message;
2. Master add announcement signatures into channel_init message, and send this message to Channeld.
Channeld will initial the channel with this signatures when it reenables the channel.
Channeld sends announcement signatures to Master by this message.
When Channeld receive a new channel announcement msg, (After channel locking)it will sends announcement signatures to Master by this message.
Reorg changes short_channel_id after lockin of private channel, while
one node restarts.
test that:
- peer->depth_togo in billboard decrements
- reorg and scid change is detected by running node and restarting node
- both `old` and `new` scids are in rtable
Also added a comment to test_blockchaintrack to clarify.
Keep watching and updating scid until ANNOUNCE_MIN_DEPTH, even when channel is private.
When scid changes, we fail channeld so it will restart and initialize with updated
scid and add it to rtable. Reorgs can change funding tx's height/index after lockin,
which could happen with small minimum_depth=1.
Now without bitcoind restart.
bitcoin-cli `prioritisetransaction` came to the rescue!
Its argument `fee_delta` (apparently) lowers the txs _effective_ feerate
soo low that bitcoind wont mine it ... untill we raise it when we want
it to be mined.
Because the call (wallet_extract_owned outputs) that prints that line can happen
_before_ or _after_ confirmation in block, adding `CONFIRMED` in the later.
Christian Decker
Rusty Russell
Michael Schmoock
William Casarin
darosior
ZmnSCPxj
trueptolemy
Rene Pickhardt
Simon Vrouwe