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.
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.
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>
The spec doesn't say to do this, but it makes sense, otherwise
they'll never be able to mutually close the channel.
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.
They need to specify fees to get a channel before this, but it's possible.
The test revealed no surprises (other than the last change).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Saves a great deal of confusion for regtest users.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Changed: JSON-RPC: If bitcoind won't give a fee estimate in regtest, use minimum.
This avoids spamming the logs. We also remove the duplicate debug
logs on self-disable (plugin_kill logs it for us).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
If a plugin died due to connection close, we'd always say
"Plugin exited before completing handshake.", which was often
wrong.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
If not all nodes are up-to-date with the new blocks, they can reject
announcements:
```
lightningd-4: 2021-02-23T02:02:47.832Z DEBUG 022d223620a359a47ff7f7ac447c85c46c923da53389221a0054c11c1e3ca31d59-gossipd: Ignoring future channel_announcment for 124x1x0 (current block 123)
lightningd-4: 2021-02-23T02:02:47.848Z DEBUG lightningd: Adding block 133: 2d950451211398de9c10bf9df7eb53b385390eca31e306bc8fc1387b53d9f9a2
lightningd-4: 2021-02-23T02:02:47.865Z DEBUG 022d223620a359a47ff7f7ac447c85c46c923da53389221a0054c11c1e3ca31d59-gossipd: Bad gossip order: WIRE_CHANNEL_UPDATE before announcement 124x1x0/0
lightningd-4: 2021-02-23T02:02:47.866Z DEBUG 022d223620a359a47ff7f7ac447c85c46c923da53389221a0054c11c1e3ca31d59-gossipd: Bad gossip order: WIRE_CHANNEL_UPDATE before announcement 124x1x0/1
```
Technically, this change is not sufficient either, since *gossipd* might
not know about new block yet. But it makes this case less likely.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We get a label clash: easy, just re-serve:
```
2021-02-18T04:29:37.474Z **BROKEN** plugin-offers: Failed invoice_request lnr1qgsqvgnwgcg35z6ee2h3yczraddm72xrfua9uve2rlrm9deu7xyfzrcyyqwtp0rmsgquvuacqcl5cdfzwzmu3v8tqgvpqs8e80dlmxm7ey4xwrqdsqqqqqqqqqqqqqqqq2pqqfqpqynzqzx9rylzy40ernj4jzc3p2dwy3n8x6lqeaywwk725ghx4kx63pcfxgg2z3nsn80jzge06nt3ks8pr6rvnujq48376lpmrr3cq04nurpy783eyr0awh5773lrlmjek07rjf0nx4g9235ulkcs7jp2h5gumjyquhadh846da3jptxm9g0qz5lne4hjhag for offer 1cb0bc7b8201c673b8063f4c352270b7c8b0eb02181040f93bdbfd9b7ec92a67: Got JSON error: {\"code\":900,\"message\":\"Duplicate label\",\"data\":{\"label\":\"1cb0bc7b8201c673b8063f4c352270b7c8b0eb02181040f93bdbfd9b7ec92a67-08c5193e2255f91ce5590b110a9ae2466736be0cf48e75bcaa22e6ad8da88709-1\",\"bolt12\":\"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\",\"payment_hash\":\"396250395aa046f4c58162a5ae31952d01bd0c8e5213f32e748ec428a9379cd2\",\"msatoshi\":7700446,\"amount_msat\":\"7700446msat\",\"status\":\"unpaid\",\"description\":\"Weekly coffee for rusty!\",\"expires_at\":1614832137,\"local_offer_id\":\"1cb0bc7b8201c673b8063f4c352270b7c8b0eb02181040f93bdbfd9b7ec92a67\"}}
```
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We used to only set it for single-use offers (where it's required),
but it's still interesting for multi-use offers, so let's keep it
there.
We also put this field in the documentation.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Nested `with` exception checks don't work; fix flakes i'm seeing with
valgrind causing failures because blockchain not up to date when
`fundchannel` called.
We weren't waiting for the channel to get to normal state:
E pyln.client.lightning.RpcError: RPC call failed: method: pay, payload: {'bolt11': 'lnbcrt20m1pszfpezpp549um3vuyt52rgea32g7u55a5fv29yv7t94cmr2f0vjgcc33m3dvqdqzdgxqyjw5qcqp9sp59vu4tat2n53ylzrgxa95s5wu2s885a9llud64c0f6gjqts7h6tks9qy9qsq7u0j3w2h3sxxp9axpjxkz525znjn0t92gnrgk7y6plyq39zw9994g88xxjx52egk4965dp5qt2w08hk009eq9hm8nykwmxe7r705k8gpkqu9mw'}, error: {'code': 210, 'message': 'Ran out of routes to try after 1 attempt: see `paystatus`', 'attempts': [{'status': 'failed', 'failreason': 'Cannot attempt payment, we have no channel to which we can add an HTLC', 'partid': 1, 'amount': '2000000000msat'}]}
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
LightningNode.join_nodes and LightningNode.openchannel internally
generate blocks, which causes nodes to be out of sync, and ignore
"future" announcements, because they haven't seen that block yet.
It was using a trick to only shut down the first node, and forgetting
about the others. This could lead to processes not being stopped
correctly and to test failures because the directory isn't cleaned up
correctly.
Now we use the executor to shut as many nodes as possible in parallel.
In the case where you want a PSBT and also want the output to be added
as a change address, use `excess_as_change` = true.
Generates a change address to use. If you want to pay the excess
elsewhere, you will have to add separately.
Changelog-Added: JSON-RPC: Add new parameter `excess_as_change` to fundpsbt+utxopsbt
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.
And make all the callers choose which one. In general, I prefer warn,
which lets them reconnect and try again, however some places are either
stated that they must be errors in the spec itself, or in openingd
where we abandon the channel when we close the connection anyway.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Changed: Protocol: we now send warning messages and close the connection, except on unrecoverable errors.
We construct the route manually so we may not have the
channel_announcement yet. But we can get an update from the error
packet, which can lead to:
```
2021-01-29T01:38:23.4767334Z ValueError:
2021-01-29T01:38:23.4767987Z Node errors:
2021-01-29T01:38:23.4768767Z - lightningd-1: had bad gossip messages
2021-01-29T01:38:23.4769512Z Global errors:
2021-01-29T01:38:23.4770300Z
2021-01-29T01:38:23.4771109Z contrib/pyln-testing/pyln/testing/fixtures.py:197: ValueError
...
2021-01-29T01:38:23.7820197Z lightningd-1: 2021-01-29T01:26:57.460Z DEBUG gossipd: Extracted channel_update 01027217b3086ad9f3dee1fa55b94c5fd2a4b0637bec70ba727ba4151a8de5173ddc749db3502d41ab0ae164addc8fd013d2088b6a12a2f478ae0affa94d76d8845c06226e46111a0b59caaf126043eb5bbf28c34f3a5e332a1fc7b2b73cf188910f000067000001000160136459010000060000000000000000000000010000000a000000003b023380 from onionreply 100d0000007500887217b3086ad9f3dee1fa55b94c5fd2a4b0637bec70ba727ba4151a8de5173ddc749db3502d41ab0ae164addc8fd013d2088b6a12a2f478ae0affa94d76d8845c06226e46111a0b59caaf126043eb5bbf28c34f3a5e332a1fc7b2b73cf188910f000067000001000160136459010000060000000000000000000000010000000a000000003b023380
2021-01-29T01:38:23.7837450Z lightningd-1: 2021-01-29T01:26:57.461Z DEBUG gossipd: Bad gossip order: WIRE_CHANNEL_UPDATE before announcement 103x1x1/0
```
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We should actually be including this (as it may define _GNU_SOURCE
etc) before any system headers. But where we include <assert.h> we
often didn't, because check-includes would complain that the headers
included it too.
Weaken that check, and include config.h in C files before assert.h.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We fix up the test by using pay, instead of sendpay (and making pay log
the expected message).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Changed: sendpay no longer extracts updates from errors, the caller should do it from the `raw_message`.
Nit: The underscore in "openchannel_hook" is wrong, bcause the name of
the hook is just "openchannel". The "_hook" implied this to be part of
the name.
Changelog-None
