Caught by leak detection, we just re-assigned this when we retried: sure,
it's temporary, but it's technically a leak.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
I shut down bitcoind during a test, and bcli leak reports flooded in.
They're all temporary, but this fixes them.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This is the simplest solution, not the best, but there's significant risk in try to remove the "we have a path" assumption in the code pay code.
Includes removing a `tal_steal` which was incorrect: the buffer has the same lifetime as the plugin, so if we steal it then things get messy when we free the struct payment.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Added: Plugins: `pay` will now pay your own invoices if you try.
This means (temporarily) that blacklisting won't work (fix later), and
means that old-style (commando.py) master-secret-override doesn't work.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Removed: Plugins: `commando` no longer allows datastore ['commando', 'secret'] to override master secret (re-issue runes if you were using that!).
In preparation for going async:
1. Split try_command's tail into a new function called execute_command() after
the rune checks have succeeded.
2. Put all the info execute_command() needs into struct cond_info, to make it
a simple callback style.
So we create new_cond_info() which dynamically allocates `struct cond_info`
and sets the destructor.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We would create a `struct commando` to marshal our incoming messages,
then try_command would create a *new* one. We can simply reuse, but
when I did I noticed a trick: the new one was not in the `incomings`
array, so didn't work towards the ratelimit. So we need to remove it
from `incomings` in `try_command`, but at least it's now explicit.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We used to activate on the first rune creation, but we're no longer in charge
of runes, so we can't make that call.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Debugging a number of payments showed that we sometimes waste a number
of attempts routing through a channel via its alias, rather than its
scid. This is because while we annotate the scid when it has been set,
we do not do so for the alias. The alias then is picked for routing
despite not having enough capacity, failing the attempt locally.
It can also happen that we alternate between scid and alias, doubling
the number of failed attempts before we can make progress.
This patch sets the hint for the alias to a capacity of 0 and disables
it as if the peer were offline. This means when available we'll always
use the scid, which is also far easier to read in the logs.
Changelog-Fixed: pay: We now track spendable amounts when routing on both the local alias as well as the short channel ID
The presplitter modifier would split a payment before trying the first
attempt based on some common sizes. Its goal was to have smaller parts
in flight over different paths, in order to make it more difficult for
a forwarding node to learn payment amount. However it was causing some
issues for direct payments, and estimates on spendable amounts which
considers only the first HTLC being added, but presplitter would
always cause multiple HTLCs to be kicked off, causing the estimate to
be off.
Removing the presplitter fixes this, making draining channels easier,
and worse success rates, due to more HTLCs in flight directly
impacting the changes of getting stuck.
Changelog-Removed: pay: `pay` no longer splits based on common size, as it was causing issues in various scenarios.
This is almost always true already; fix up the few non-standard ones.
This is enforced with an assert, and I ran the entire test suite to
double-check.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Previously, our code checked for the presence of the `lightning:`
prefix while decoding a bolt11 string. Although this prefix is valid
and accepted by the core lightning pay command, it was causing issues
with how we managed invoices. Specifically, we were skipping the prefix
when creating a copy of the invoice string and storing the raw invoice
(including the prefix) in the database, which caused inconsistencies
in the user experience.
To address this issue, we need to strip the `lightning:` prefix before
calling each core lightning command. In addition, we should
modify the invstring inside the db with the canonical one.
This commit fixes the issue by stripping the `lightning:` prefix
from the `listsendpays` function, which will improve the
user experience and ensure consistency in our invoice management (see
next commit).
Reported-by: @johngribbin
Link: ElementsProject#6207
Fixes: debbdc0
Changelog-Fixes: trim the `lightning:` prefix from invoice everywhere.
Signed-off-by: Vincenzo Palazzo <vincenzopalazzodev@gmail.com>
We usually have access to `ld`, so avoid the global.
The only place generic code needs it is for the json command struct,
and that already has accessors: add one for libplugin and lightningd
to tell it if deprecated apis are OK.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This avoids the mess where we override db_fatal for teqsts, and keeps it
generic.
Also allows us to get rid of one #if DEVELOPER, and an ugly global for
bookkeeper.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
If we're opening a channel with a peer which support anchors (and
we do), we tell fundpsbt/utxopsbt to enforce the emergency reserve;
this matters, as it doesn't know about the channel yet, and thus
won't (if it's our first anchor channel).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Changed: JSON-RPC: `fundchannel` and `multifundchannel` will refuse to spend funds below `min-emergency-msat` if we have any anchor channels (or are opening one).
This was added to fundpsbt/utxopsbt in v0.10, but the spender plugin
didn't take advantage of it, instead calculating its own change amount
and output.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This was added to fundpsbt/utxopsbt in v0.10, but the txprepare plugin
didn't take advantage of it, instead calculating its own change amount
and output.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We were marking our inputs very late, which means any early failure
would not know to unreserve them.
This becomes particularly bad when we start enforcing emergency reserves.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
mfc->feerate_str is *never* NULL, since we set it in getfeerate; this is
confusing, as many places check for NULL.
Indeed, the logic in perform_fundpsbt() was *wrong* in this case: it used
`normal` (if it was NULL, which it never was) instead of `opening` to fundpsbt.
And the correct thing is for multifundchannel to not use a string here at
all, but to use the exact feerate it is counting on (even the same
string may have different values now if a block has come in).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Since we didn't hash the descriptions properly (see previous commit), we
cannot immediately deprecate omitting the descriptions (since you'd
have to omit them for backwards compat!).
And move the "must have description or hash" test into bolt11.c core.
Changelog-Deprecated: `pay` has *undeprecated* paying a description-hash invoice without providing the description.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This means we need to push off requring this for another full deprecation cycle!
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Fixed: JSON-RPC: `pay` and `decodepay` with description now correctly handle JSON escapes (e.g " inside description)
I added a plugin arg and was surprised that compile didn't break.
This is because typesafe_cb et al are conditional casts: if the type
isn't as expected it has no effect, but we're passing plugin_option() through
varargs, so everything is accepted!
Add a noop inline to check type, and fix up the two cases where we
used `const char *` instead of `char *`.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Previously, if these failed we always exited; once we have dymamic
configs this would be a (tiny) memory leak, so use tmpctx.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
When core lightning is asking the information about
the blockchain with `getchaininfo` command lightningd
know already the information about the min and max block height.
the problem is when we have a smarter Bitcoin backend that is able
to switch between different clients in some cases is helpful
give the information about current known height by lightningd and
pass it down to the plugin.
In this way, the plugin knows what is the correct known height from lightnind, and can
try to fix some problems if any exit.
This is particularly useful when you are syncing a new backend from scratch
like https://github.com/cloudhead/nakamoto and we avoid returning the
lower height from the known, and avoid the crash of core lightning.
With this information, the plugin can start to sync the chain and return
the answer back only when the chain is in sync with the current status of
lightningd.
Another reason to add this field and not wait the correct block in core
lightning itself is because Bitcoin Core is extremely slow to sync up,
so the question here is, how long should we wait? The time depends
on various factors.
With this approach of informing the plugin about the height, in some cases,
you can start the syncing but move the execution to another backend until
the previous one is ready.
The problem I want to solve is that I don't want to be left in the dark when
we run `getchaininfo`, and I want to have the opportunity to wait for
the blockchain sync or decide to dispatch the request elsewhere.
Changelog-Added: Pass the current known block height down to the getchaininfo call.
Signed-off-by: Vincenzo Palazzo <vincenzopalazzodev@gmail.com>
Previously any attempt would result in "is not an integer field"; we
now recognize valid JSON integers as integer fields.
Changelog-Fixed: Plugins: `commando` runes can now compare integer parameters using '<' and '>' as expected.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Otherwise we later copy the uninitialized memory to descendants,
triggering undefined behavior:
plugins/libplugin-pay.c:2882:34: runtime error: load of value 190, which is not a valid value for type 'bool'
This integrates them with configvars properly: they almost "just work"
in listconfigs now, and we don't put them in a special sub-object
under their plugin.
Unfortunately, this means `listconfigs` now has a loose schema: any
plugin can add something to it.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Fixed: Plugins: reloaded plugins get passed any vars from configuration files.
Changelog-Deprecated: Config: boolean plugin options set to `1` or `0` (use `true` and `false` like non-plugin options).
We use multi-specifiable options elsewhere, this is just another.
Otherwise you can't add, you can only set them all.
Changelog-Added: Config: `accept-htlc-tlv-type` (replaces awkward-to-use `accept-htlc-tlv-types`)
Changelog-Deprecated: Config: `accept-htlc-tlv-types` (use `accept-htlc-tlv-type` multiple times)
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
gcc 13 add an extra check for the enum in the definition
of a method. In our case the code was failing with the
following error, and the compiler is right, our definition
is different from the implementation.
```
$ make
CC: cc -DBINTOPKGLIBEXECDIR="../libexec/c-lightning" -Wall -Wundef -Wmissing-prototypes -Wmissing-declarations -Wstrict-prototypes -Wold-style-definition -Werror -Wno-maybe-uninitialized -Wshadow=local -std=gnu11 -g -fstack-protector-strong -Og -I ccan -I external/libwally-core/include/ -I external/libwally-core/src/secp256k1/include/ -I external/jsmn/ -I external/libbacktrace/ -I external/gheap/ -I external/x86_64-redhat-linux/libbacktrace-build -I external/libsodium/src/libsodium/include -I external/libsodium/src/libsodium/include/sodium -I external/x86_64-redhat-linux/libsodium-build/src/libsodium/include -I . -I/usr/local/include -DSHACHAIN_BITS=48 -DJSMN_PARENT_LINKS -DCOMPAT_V052=1 -DCOMPAT_V060=1 -DCOMPAT_V061=1 -DCOMPAT_V062=1 -DCOMPAT_V070=1 -DCOMPAT_V072=1 -DCOMPAT_V073=1 -DCOMPAT_V080=1 -DCOMPAT_V081=1 -DCOMPAT_V082=1 -DCOMPAT_V090=1 -DCOMPAT_V0100=1 -DCOMPAT_V0121=1 -DBUILD_ELEMENTS=1 -c -o
LD: cc -Og config.vars -Lexternal/x86_64-redhat-linux -lwallycore -lsecp256k1 -ljsmn -lbacktrace -lsodium -L/usr/local/include -lm -lgmp -lsqlite3 -lz -o
cc plugins/spender/multifundchannel.c
plugins/spender/multifundchannel.c:71:6: error: conflicting types for ‘fail_destination_msg’ due to enum/integer mismatch; have ‘void(struct multifundchannel_destination *, enum jsonrpc_errcode, const char *)’ [-Werror=enum-int-mismatch]
71 | void fail_destination_msg(struct multifundchannel_destination *dest,
| ^~~~~~~~~~~~~~~~~~~~
In file included from plugins/spender/multifundchannel.c:13:
./plugins/spender/multifundchannel.h:263:6: note: previous declaration of ‘fail_destination_msg’ with type ‘void(struct multifundchannel_destination *, int, const char *)’
263 | void fail_destination_msg(struct multifundchannel_destination *dest,
| ^~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
make: *** [Makefile:307: plugins/spender/multifundchannel.o] Error 1
```
The gcc 13 is not released yet, but fedora beta is out for public testing,
so it is useful fix this error in this release candidate cycle.
Changelog-Fixed: Build: Compilation with upcoming gcc 13
Reported-by: @grubles
Link: https://github.com/ElementsProject/lightning/issues/6175
Signed-off-by: Vincenzo Palazzo <vincenzopalazzodev@gmail.com>
This was pointed out by Daywalker [1]: we are synchronously processing
events from `lightningd` which means that if processing one of the
hooks or requests was slow or delayed, we would not get notifications,
hooks, or RPC requests, massively impacting the flexbility.
This highlights the issue with a failing test (it times out), and in
the next commit we will isolate event processing into their own task,
so to free the event loop from having to wait for an eventual
response.
[1] https://community.corelightning.org/c/developers/hold-invoice-plugin#comment_wrapper_16754493
This was always the intent, but now we have to reconstruct from the
disparate fields.
This means `option_anchor_outputs` is now redundant.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Fixes: #4473
Changelog-Deprecated: Plugins: `estimatefees` returning feerates by name (e.g. "opening"); use `fee_floor` and `feerates`.
Changelog-Fixed: Plugins: `bcli` now tells us the minimal possible feerate, such as with mempool congestion, rather than assuming 1 sat/vbyte.
Turns out the two bcli replacements I checked (`sauron` and
`trustedcoin`) don't even implement this, and the multiplier makes
more sense in lightningd, especially as we move to bcli just providing
raw feerate estimates.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
"BOLT 4: Remove legacy format, make var_onion_optin compulsory."
This also renamed the redundant "tlv_payload" to "payload", so we
replace "tlv_tlv_payload" with "tlv_payload" everyhere!
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
With the warning that we were trying to put "inf" into a u64, we can
see that this calculation was wrong to use integers!
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We didn't handle the case of an array inside a subobject. But that
happens when we add the next commit!
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
While we are cleaning up the list forwards with the autoclean plugin we are
not taking into count the forward's payments with the status set to
`local_failed`. In this case, the forwards have no resolved
time because it was not resolved by us due to some local error.
So, this commit is fixing the auto clean plugin by allowing to delete
of the forwards with status set to local_failed by taking into count
the received_time, with the assumption that the received_time, in this case,
is equal to the resolved time (?)
Reported-by: @denis2342
Link: https://github.com/ElementsProject/lightning/issues/6058
Signed-off-by: Vincenzo Palazzo <vincenzopalazzodev@gmail.com>
Changelog-Fixed: plugin: autoclean: considerer the forwards with status
set to `local_failed`.
Libwally update breaks compatibility, so
we do this in one large step.
Changelog-Changed: JSON-RPC: elements network PSET now only supports PSETv2.
Changelog-Added: JSON-RPC: PSBTv2 supported for fundchannel_complete, openchannel_update, reserveinputs, sendpsbt, signpsbt, withdraw and unreserveinputs parameter psbt, openchannel_init and openchannel_bump parameter initialpsbt, openchannel_signed parameter signed_psbt and utxopsbt parameter utxopsbt
While the user trying to fetch an invoice by specifing the quantity we do
not work as expected.
Running the command
```
lightning-cli fetchinvoice -k offer='lno1qgsqvgnwgcg35z6ee2h3yczraddm72xrfua9uve2rlrm9deu7xyfzrcgqffqszsk2p6hycmgv9ek2grpyphxjcm9ypmkjer8v46pyzmhd9jxwet5wvhxxmmdzsqs593pq0ylsvakdua5h976f4g3eautgjt3udvtyga47eaw7339sjrhpwpwz' quantity=2
```
and we answer back with
```json
{
"code": -32602,
"message": "quantity parameter required"
}
```
This is caused because we forget to bind the `quanity` field from the
RPC into the `invrequest`.
Reported-by: @aaronbarnardsound
Link: https://github.com/ElementsProject/lightning/issues/6089
Signed-off-by: Vincenzo Palazzo <vincenzopalazzodev@gmail.com>
Changelog-EXPERIMENTAL: fetchinvoice: fix: do not ignore the `quantity` field
into the invreq field.
When plugins receive a "shutdown" notification, then can call this
method which will shutdown `cln_plugin`.
Then they can await `plugin.join()` and do any remaining cleanup
there.
This helps avoid a pain-point where plugin authors need to handle
2 separate plugin shutdown mechanisms https://github.com/ElementsProject/lightning/issues/6040
It's still deprecated: we need the description since
1. This information is useful for any validation we want to do, such as
the HSM, or runes.
2. We want this information in listpays so we can tell what we actually paid.
3. In general, we should never sign commitments to things we don't have!
I expect to have this information about payments *whatever the frontend* is,
which is why we deprecated (and then removed) this unintended use. The spec
is pretty clear on this:
BOLT #11:
```
A reader:
...
- MUST check that the SHA2 256-bit hash in the `h` field exactly matches the hashed
description.
```
However, neither BTCPayServer nor lnbits updated despite the long deprecation
period, so revert 2afe7a1856.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Seems like LND is hanging up on receiving these messages, even though
they're odd :(
So, when a peer connects, check if it supplies or wants peer backup
(even if it doesn't support both, it shouldn't hang up, and I didn't
want to separate the two paths).
And when we go to send our own, updated backup, check features before
sending.
Fixes: #6065
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-EXPERIMENTAL: `experimental-peer-storage` caused LND to hang up on us, so only send to peers which support it.
Without this patch, we only ever loaded the "nodes" table once, then
didn't see updates.
How this ever got past CI is a mystery; perhaps valgrind was so slow that
the updated node_announcement hit the gossmap before we even asked sql
on l3 about the nodes table?
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Fixed: Plugins: `sql` nodes table now gets refreshed when gossip changes.
Since it is an optional field in the `listconfigs` output we can't use
the `rpc_scan` mechanism (doesn't handle optionals yet). We'll use
that list of accepted types later to avoid stripping them.
This commit will disable the peerstorage plugins
when the feature is not enabled.
I found this issue with lnprototest, and I guess
we did not find it with normal run because
other the unknown messages are ingored?
Changelog-Fixed: Disable the protocol messages when peerstorage is disabled.
Signed-off-by: Vincenzo Palazzo <vincenzopalazzodev@gmail.com>
If we had two things to clean, we fired off two requests (eg.
listforwards and listinvoices) and both marked the timer as finished,
triggering an assert.
We already have a refcount for outstanding requests to avoid this
for e.g. outstanding del commands, so use it here too!
```
Jan 19 19:20:00 lightningd[748044]: autoclean: plugins/libplugin.c:445: timer_complete: Assertion `p->in_timer > 0' failed.
Jan 19 19:20:00 lightningd[748044]: autoclean: FATAL SIGNAL 6 (version v22.11.1)
Jan 19 19:20:00 lightningd[748044]: 0x562c388136e4 send_backtrace
Jan 19 19:20:00 lightningd[748044]: common/daemon.c:33
Jan 19 19:20:00 lightningd[748044]: 0x562c3881376c crashdump
Jan 19 19:20:00 lightningd[748044]: common/daemon.c:46
Jan 19 19:20:00 lightningd[748044]: 0x7f26d0898d5f ???
Jan 19 19:20:00 lightningd[748044]: ./signal/../sysdeps/unix/sysv/linux/x86_64/sigaction.c:0
Jan 19 19:20:00 lightningd[748044]: 0x7f26d0898ce1 __GI_raise
Jan 19 19:20:00 lightningd[748044]: ../sysdeps/unix/sysv/linux/raise.c:51
Jan 19 19:20:00 lightningd[748044]: 0x7f26d0882536 __GI_abort
Jan 19 19:20:00 lightningd[748044]: ./stdlib/abort.c:79
Jan 19 19:20:00 lightningd[748044]: 0x7f26d088240e __assert_fail_base
Jan 19 19:20:00 lightningd[748044]: ./assert/assert.c:92
Jan 19 19:20:00 lightningd[748044]: 0x7f26d0891661 __GI___assert_fail
Jan 19 19:20:00 lightningd[748044]: ./assert/assert.c:101
Jan 19 19:20:00 lightningd[748044]: 0x562c3880355d timer_complete
Jan 19 19:20:00 lightningd[748044]: plugins/libplugin.c:445
Jan 19 19:20:00 lightningd[748044]: 0x562c38800b54 clean_finished
Jan 19 19:20:00 lightningd[748044]: plugins/autoclean.c:122
Jan 19 19:20:00 lightningd[748044]: 0x562c388010ed clean_finished_one
Jan 19 19:20:00 lightningd[748044]: plugins/autoclean.c:132
Jan 19 19:20:00 lightningd[748044]: 0x562c388011b6 del_done
Jan 19 19:20:00 lightningd[748044]: plugins/autoclean.c:149
Jan 19 19:20:00 lightningd[748044]: 0x562c388058b5 handle_rpc_reply
Jan 19 19:20:00 lightningd[748044]: plugins/libplugin.c:768
Jan 19 19:20:00 lightningd[748044]: 0x562c38805a39 rpc_read_response_one
Jan 19 19:20:00 lightningd[748044]: plugins/libplugin.c:944
Jan 19 19:20:00 lightningd[748044]: 0x562c38805ad7 rpc_conn_read_response
Jan 19 19:20:00 lightningd[748044]: plugins/libplugin.c:968
Jan 19 19:20:00 lightningd[748044]: 0x562c38876b60 next_plan
Jan 19 19:20:00 lightningd[748044]: ccan/ccan/io/io.c:59
Jan 19 19:20:00 lightningd[748044]: 0x562c38876fe7 do_plan
Jan 19 19:20:00 lightningd[748044]: ccan/ccan/io/io.c:407
Jan 19 19:20:00 lightningd[748044]: 0x562c38877080 io_ready
Jan 19 19:20:00 lightningd[748044]: ccan/ccan/io/io.c:417
Jan 19 19:20:00 lightningd[748044]: 0x562c3887823c io_loop
Jan 19 19:20:00 lightningd[748044]: ccan/ccan/io/poll.c:453
Jan 19 19:20:00 lightningd[748044]: 0x562c38805d11 plugin_main
Jan 19 19:20:00 lightningd[748044]: plugins/libplugin.c:1801
Jan 19 19:20:00 lightningd[748044]: 0x562c38801c7a main
Jan 19 19:20:00 lightningd[748044]: plugins/autoclean.c:613
```
Fixes: #5912
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Rusty Russell
Shahana Farooqui
Christian Decker
Vincenzo Palazzo
Greg Sanders
Matt Morehouse
niftynei
Justin Moon
Alex Myers