Commit Graph

33 Commits

Author SHA1 Message Date
Rusty Russell 40544b74f9 plugins/bcli: fix uninitialized variable.
We didn't set this to false on non-regtest!

```
==198363== Conditional jump or move depends on uninitialised value(s)
==198363==    at 0x10EF88: estimatefees_parse_feerate (bcli.c:443)
==198363==    by 0x10F3BF: estimatefees_second_step (bcli.c:550)
==198363==    by 0x10E720: bcli_finished (bcli.c:258)
==198363==    by 0x1438A7: destroy_conn (poll.c:244)
==198363==    by 0x1438CB: destroy_conn_close_fd (poll.c:250)
==198363==    by 0x151A7A: notify (tal.c:240)
==198363==    by 0x151F91: del_tree (tal.c:402)
==198363==    by 0x15232D: tal_free (tal.c:486)
==198363==    by 0x141EB8: io_close (io.c:450)
==198363==    by 0x14400B: io_loop (poll.c:449)
==198363==    by 0x114BB0: plugin_main (libplugin.c:1414)
==198363==    by 0x1105C4: main (bcli.c:973)
```

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2021-06-17 11:47:02 +09:30
Rusty Russell d8e68893f5 bcli: become less aggressive with onchain fee levels.
Users are more upset recently with the cost of unilateral closes
than they are the risk of being cheated.  While we complete our
anchor implementation so we can use low fees there, let's
get less aggressive (we already have 34 or 18 blocks to close
in the worst case).

The changes are:

- Commit transactions were "2 CONSERVATIVE" now "6 ECONOMICAL".
- HTLC resolution txs were "3 CONSERVATIVE" now "6 ECONOMICAL".
- Penalty txs were "3 CONSERVATIVE" now "12 ECONOMICAL".
- Normal txs were "4 ECONOMICAL" now "12 ECONOMICAL".

There can be no perfect levels, but we have had understandable
complaints recently about how high our default fee levels are.

Changelog-Changed: Protocol: channel feerates reduced to bitcoind's "6 block ECONOMICAL" rate.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2021-05-11 11:25:16 +09:30
Rusty Russell 9a22e7b3a1 plugins/bcli: make feerate calls more changeable.
This make it clearer what we're doing, IMHO, so we can easily alter
the levels if we want.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2021-05-11 11:25:16 +09:30
Nalin Bhardwaj ae06bb91ed plugins/bcli: strip trailing whitespace appropriately
Changelog-Fixed: Handle windows-style newlines and other trailing whitespaces correctly in bitcoin-cli interface
2021-05-03 19:00:26 +09:30
Christian Decker f963a6a551 libplugin: Add notification topics to plugin_main 2021-05-03 11:20:15 +09:30
Jan Sarenik 1b02d15695 typo: information is an uncountable mass noun
See https://en.wikipedia.org/wiki/Information

In libplugin.c also the word "details" was added (without removing
the 'information').

Changelog-None
2021-03-16 10:45:40 +10:30
Rusty Russell 4848c0022f plugins/bcli: fake minimum fee if we're in regtest mode.
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.
2021-03-02 13:34:55 +10:30
Rusty Russell 27c006f7aa libplugin: make init return a string.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Added: libplugin: init can return a non-NULL string to disable the plugin.
2021-01-13 14:45:36 +01:00
Rusty Russell 3b7d0e7a62 common/json: make json_scan return an error string.
This makes for more useful errors.  It prints where it was up to in
the guide, but doesn't print the entire JSON it's scanning.

Suggested-by: Christian Decker
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2021-01-07 19:32:47 +01:00
Rusty Russell 35e8949df3 plugins/bcli: convert to json_scan.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2021-01-07 19:32:47 +01:00
niftynei 6030d0542a bcli: print error message in debug log for broadcast failures 2020-12-24 11:38:49 +01:00
niftynei 47d9ff88df bcli: only print error if exitcode is non-zero 2020-12-24 11:38:49 +01:00
niftynei 08c8581461 bcli: allocate temp string off of short-lived cmd
`cmd` gets cleaned up almost immediately, and is the right scope for a
temporary string allocation
2020-12-24 11:38:49 +01:00
niftynei f9a2489424 bcli: print sendrawtx every time (even on failures) 2020-12-24 11:38:49 +01:00
Rusty Russell 6195d953cc plugins: use "slow" feerate for mutual close negotiation.
We're rarely in a hurry here, and bitcoind is aggressive with fees.
You can always spend this output if you really have to, using CPFP.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Changed: Protocol: mutual closing feerate reduced to "slow" to avoid overpaying.
2020-10-13 20:53:34 +02:00
ZmnSCPxj jxPCSnmZ ee276bcb86 plugins/bcli.c: `sendrawtransaction` now has a required `allowhighfees` argument.
Changelog-Deprecated: plugin: `bcli` replacements should note that `sendrawtransaction` now has a second required Boolean argument, `allowhighfees`, which if `true`, means ignore any fee limits and just broadcast the transaction. Use `--deprecated-apis` to use older `bcli` replacement plugins that only support a single argument.
2020-09-09 12:38:19 +09:30
Christian Decker 31c67f1392 bcli: Avoid tal_fmt when handling a raw hex block
We were using `tal_fmt` to truncate off the last byte of the
response (newline), which required an allocation, a call to `vsnprintf` and a
copy of the block contents. This being >2MB in size on mainnet was rather
expensive.

We now just signal the end of the string by overwriting the trailing newline,
and stealing directly onto the result.
2020-09-02 13:21:32 +02:00
Rusty Russell f2d0a1d406 plugins/bcli: use simplified parser, unify bad JSON paths.
They should all show the complete JSON, so unify them.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2020-08-21 09:52:33 +09:30
Antoine Poinsot 905730341a bcli: explicitly check at startup that bitcoind does relay transactions
We've had problems with blocksonly in the past and bitcoind still allows
to use outdated (thus potentially dangerous estimates) while running
bitcoin with -blocksonly.

ZmnSCPxj mentionned that we still don't document this, but i figured
that in this specific case an explicit check and error seems preferable.

Changelog-Added: We now explicitly check at startup that our default Bitcoin backend (bitcoind) does relay transactions.

Proposed-by: ZmnSCPxj <zmnscpxj@protonmail.com>
Signed-off-by: Antoine Poinsot <darosior@protonmail.com>
2020-08-03 12:46:37 +09:30
Antoine Poinsot 5be07c5fe3 bcli: poll `getnetworkinfo` at startup
This allows us to kill two birds with one stone: once connected, we use
the output of the successful call to do some sanity checks (only
checking the version for now, but more are yet to come!).

Changelog-Added: We now explicitly check at startup the version of our default Bitcoin backend (bitcoind).
Co-Authored-by: ZmnSCPxj <zmnscpxj@protonmail.com>
Signed-off-by: Antoine Poinsot <darosior@protonmail.com>
2020-08-03 12:46:37 +09:30
Christian Decker eb322b114b plugin: Do not automatically initialize the RPC connection in bcli
Changelog-Fixed: plugin: `bcli` no longer logs a harmless warning about being unable to connect to the JSON-RPC interface.
Changelog-Added: plugin: Plugins can opt out of having an RPC connection automatically initialized on startup.
2020-07-23 10:14:21 +09:30
Antoine Poinsot d67743d511 bcli cleanups
Correct some comments wrt estimatefees, add a constructor for bitcoind

Signed-off-by: Antoine Poinsot <darosior@protonmail.com>
2020-05-20 06:09:24 +09:30
Antoine Poinsot f598caa60d config: don't ignore the --commit-fee option.
We did not take the value of --commit-fee into account : this removes
the unused option from lightningd and instead registers it in bcli,
where we set the actual feerate of commitment transactions. This also
corrects the documentation.

Changelog-Fixed: config: we now take the --commit-fee parameter into account.
Signed-off-by: Antoine Poinsot <darosior@protonmail.com>
2020-05-20 06:09:24 +09:30
lisa neigut 3cfafa81eb bcli-bugfix: pass along entire script
sizeof doesn't give the correct length, instead use tal_hex which will
measure the script length correctly

Changelog-None
2020-05-02 12:39:16 +02:00
Antoine Poinsot 3fc77730be bcli: don't log failed sendrawtransaction attempts twice
They are already logged both in bcli, and in lightningd.
This just adds a lot of noise to the logs. We keep successed attempts
though for the tests.

Signed-off-by: Antoine Poinsot <darosior@protonmail.com>
2020-04-30 19:27:54 -05:00
Christian Decker e03acd9663 libplugin: Add features to plugin_main and getmanifest 2020-04-16 18:03:35 +09:30
darosior 7c0af81c21 bcli: use a more urgent feerate for HTLCs and penalty transactions
A CONSERVATIVE/3 target for them.

Some noisy changes to the tests as we had to update the estimatesmartfee
mock.

Changelog-Changed: We now use a higher feerate for resolving onchain HTLCs and for penalty transactions
2020-04-01 23:02:47 -05:00
darosior 610aa0b8e3 bcli: register --dev-max-fee-multiplier on our side
That way we pass the real min_acceptable (SLOW/2) and max_acceptable
(URGENT * 10) feerates to lightningd.
2020-03-30 20:17:18 +10:30
darosior 5e72b22e80 bcli: adapt interface to the new fees estimation interface
We keep the same behaviour as lightningd before.
2020-03-30 20:17:18 +10:30
darosior 8e055a4506 bcli: remove a superfluous variable 2020-03-05 15:06:38 -06:00
darosior c1009635ed plugins/bcli: register Bitcoin-related options 2020-02-12 11:45:07 +10:30
darosior f81cc9f552 plugins/bcli: wait for bitcoind to be warmed up at init
This is also taken and adapted from lightningd/bitcoind.

The call to 'getblockchaininfo' is replaced by 'echo' as we don't
make use of the result and the former can sometimes be slow (e.g. on
IBD).
2020-02-12 11:45:07 +10:30
darosior 70a79e3998 plugins/bcli: a new plugin for gathering Bitcoin data
Most is taken from lightningd/bitcoind and adapted. This currently
exposes 5 commands:
- `getchaininfo`, currently called at startup to check the network and
  whether we are on IBD.
- `getrawblockbyheight`, which basically does the `getblockhash` +
  `getblock` trick.
- `getfeerate`
- `sendrawtransaction`
- `getutxout`, used to gather infos about an output and currently used by
  `getfilteredblock` in `lightningd/bitcoind`.
2020-02-12 11:45:07 +10:30