Some Linux OSs impose a length limit on the path a Unix socket may have. This
is not an issue in `lightningd` since we `chdir()` into that directory before
opening the socket, however in pyln this became a problem for some tests,
since we use absolute paths in the testing framework. It's also a rather
strange quirk to expose to users.
This patch introduces a `UnixSocket` abstraction that attempts to work around
these limitations by aliasing the directory containing the socket into
`/proc/self/fd` and then connecting using that alias.
It was inspired by Open vSwitch code here https://github.com/openvswitch/ovs/blob/master/python/ovs/socket_util.py
Signed-off-by: Christian Decker <@cdecker>
We were indiscriminately accessing the `__annotations__` which could cause
issues if the function had been wrapped by some functions such as
`functools.partial`. This just checks that the access is safe before doing it.
Suggested-by: jarret <@jarret>
Signed-off-by: Christian Decker <@cdecker>
If absolute, we can deduce the lightning_dir, the network, and the
socket filename out of it.
This allows to be able to only specify the 'rpc-file', as before.
Changelog-Changed: Usage of `lightning-cli` by specifying only `--rpc-file` has been restored.
it's that time of year (merry xmas!)
enables the ability to push_msat on fundchannel
Changelog-Added: RPC: `fundchannel` and `fundchannel_start` can now accept an optional parameter, `push_msat`, which will gift that amount of satoshis to the peer at channel open.
This will change some `requirements.txt` of pyln-testing in a way that
it does not require different package version i.e. to `tests/requirements.txt`.
The reason for this is that users are not forced to hassle with pyenv
or virtualenv and could just use `--user`.
```bash
pip install --user -r tests/requirements.txt -r contrib/pyln-testing/requirements.txt
```
Changelog-None
Trying to `pip install psycopg2-binary==2.8.3` raised an error for a
long time. Since version `2.8.4` is recent and also seem to work I
suggest updating the requirements so other users dont run into the
following error, where pip tries to use `pg_config` for the BINARY
package:
Collecting psycopg2-binary==2.8.3 (from -r contrib/pyln-testing/requirements.txt (line 6))
Using cached 91911be018dd876c1e0f12e1b5fb90/psycopg2-binary-2.8.3.tar.gz
ERROR: Command errored out with exit status 1:
command: /usr/bin/python -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-zapr0fhs/psycopg2-binary/setup.py'"'"'; __file__='"'"'/tmp/pip-install-zapr0fhs/psycopg2-binary/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' egg_info --egg-base pip-egg-info
cwd: /tmp/pip-install-zapr0fhs/psycopg2-binary/
Complete output (23 lines):
running egg_info
creating pip-egg-info/psycopg2_binary.egg-info
writing pip-egg-info/psycopg2_binary.egg-info/PKG-INFO
writing dependency_links to pip-egg-info/psycopg2_binary.egg-info/dependency_links.txt
writing top-level names to pip-egg-info/psycopg2_binary.egg-info/top_level.txt
writing manifest file 'pip-egg-info/psycopg2_binary.egg-info/SOURCES.txt'
Error: pg_config executable not found.
pg_config is required to build psycopg2 from source. Please add the directory
containing pg_config to the $PATH or specify the full executable path with the
option:
python setup.py build_ext --pg-config /path/to/pg_config build ...
or with the pg_config option in 'setup.cfg'.
If you prefer to avoid building psycopg2 from source, please install the PyPI
'psycopg2-binary' package instead.
For further information please check the 'doc/src/install.rst' file (also at
<http://initd.org/psycopg/docs/install.html>).
----------------------------------------
ERROR: Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.
Changelog-None
We still close the channel if we *send* an error, but we seem to have hit
another case where LND sends an error which seems transient, so this will
make a best-effort attempt to preserve our channel in that case.
Some test have to be modified, since they don't terminate as they did
previously :(
Changelog-Changed: quirks: We'll now reconnect and retry if we get an error on an established channel. This works around lnd sending error messages that may be non-fatal.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Thanks to @t-bast, who made this possible by interop testing with Eclair!
Changelog-Added: Protocol: can now send and receive TLV-style onion messages.
Changelog-Added: Protocol: can now send and receive BOLT11 payment_secrets.
Changelog-Added: Protocol: can now receive basic multi-part payments.
Changelog-Added: RPC: low-level commands sendpay and waitsendpay can now be used to manually send multi-part payments.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Otherwise tests for hold_invoice fail on Travis (they use 180 / 2 as
the timeout, and we free it after 70 seconds).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This is the final step: we pass the complete fee_states to and from
channeld.
Changelog-Fixed: "Bad commitment signature" closing channels when we sent back-to-back update_fee messages across multiple reconnects.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
The upgrade here is a bit tricky: we map the two values into the
feerate_state. This is trivial if they're both the same, but if
they're different we don't know exactly what state they're in (this
being the source of the bug!).
So, we assume that the have received the update and not acked it,
as that would be the normal case.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
These used to be necessary as we could have feerate changes which
we couldn't track: now we do, we don't need these flags.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This is an intermediary step: we still don't save it to the database,
but we do use the fee_states struct to track it internally.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
The `channel_got_commitsig` we send the lightningd also implies we sent
the revoke_and_ack, as an optimization. It doesn't currently matter,
since channel_sending_revoke_and_ack doesn't do anything important to the
state, but that changes once we start uploading the entire fee_states.
So now we move our state machine *before* sending to lightningd, in
preparation for sending fee_states too.
Unfortunately, we need to marshall the info to send before we
increment the state, as lightningd expects that.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This uses the same state machine as HTLCs, but they're only
ever added, not removed. Since we can only have one in each
state, we use a simple array; mostly NULL.
We could make this more space-efficient by folding everything into the
first 5 states, but that would be more complex than just using the
identical state machine.
One subtlety: we don't send uncommitted fee_states over the wire.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Bastien TEINTURIER <bastien@acinq.fr> writes:
> One thing I noticed but didn't investigate much: after sending the two
> payments, I tried using `waitsendpay` and it reported an error *208*
> (*"Never attempted payment for
> '98ee736d29d860948e436546a88b0cc84f267de8818531b0fdbe6ce3d080f22a'"*).
>
> I was expecting the result to be something like: "payment succeeded for
> that payment hash" (the HTLCs were correctly settled).
Indeed, if you waitsendpay without specifying a partid, you are waiting
for 0, which may not exist. Clarify the error msg.
Reported-by: @t-bast
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Bastien TEINTURIER <bastien@acinq.fr> writes:
> It looks like the split on c-lightning side is quite limited at the moment:
> the only option is to split a payment in exactly its two halves,
> otherwise I get rejected because of the rule of overpaying more than
> twice the amount?
We only tested exactly two equal-size payments; indeed, our finalhop
test was backwards. We only complain if the final hop pays more than
twice msat (technically, this test is still too loose for mpp: the
spec says we should sum to the exact amount).
Reported-by: @t-bast
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This won't usually be visible to the end-user, since the pay plugin doesn't
do multi-part yet (and mpp requires EXPERIMENTAL_FEATURES), but we're ready
once it does.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
The pay plugin has been supplying the bolt11 string since 0.7.0, so only
ancient "pay" commands would be omitted by this change.
You can create a no-bolt11 "sendpay" manually, but then you'll find it
in 'listsendpays'.
Changelog-Removed: JSON: `listpays` won't shown payments made via sendpay without a bolt11 string, or before 0.7.0.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
The invoice_try_pay code now takes a set, rather than a single htlc, but
it's basically the same thing.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
AFAICT this only "worked" previously because replay htlc simply failed
them all (no peers are currently connected). With upcoming changes
(foreshadowed by the comment) this is no longer true:
Attempting to prepare a db_stmt outside of a transaction: wallet/invoices.c:373
lightningd: FATAL SIGNAL 6 (version v0.7.3-188-g45b0af4-modded)
0x55b475590a73 send_backtrace
common/daemon.c:41
0x55b475590b1d crashdump
common/daemon.c:54
0x7f16c557b46f ???
???:0
0x7f16c557b3eb ???
???:0
0x7f16c555a898 ???
???:0
0x55b475564c8f fatal
lightningd/log.c:814
0x55b4755c3ed5 db_prepare_v2_
wallet/db.c:605
0x55b4755c76b5 invoices_find_unpaid
wallet/invoices.c:373
0x55b4755ce91c wallet_invoice_find_unpaid
wallet/wallet.c:1990
0x55b47555861f invoice_check_payment
lightningd/invoice.c:257
0x55b475557a7c htlc_add_set
lightningd/htlc_set.c:112
0x55b47557b294 handle_localpay
lightningd/peer_htlcs.c:332
0x55b47557c63c htlc_accepted_hook_callback
lightningd/peer_htlcs.c:857
0x55b475585573 plugin_hook_call_
lightningd/plugin_hook.c:118
0x55b47557c747 plugin_hook_call_htlc_accepted
lightningd/peer_htlcs.c:882
0x55b47557ca3e peer_accepted_htlc
lightningd/peer_htlcs.c:991
0x55b47557ffb9 htlcs_resubmit
lightningd/peer_htlcs.c:2131
0x55b4755620f7 main
lightningd/lightningd.c:801
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This isn't plumbed in yet, but the idea is that every htlc gets put
into a "set" and then we process them once the set is satisfied. For
the !EXPERIMENTAL_FEATURES, the set is simply always size 1.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We now return the same error for various "does not match this
invoice", so it makes sense to encapsulate these checks. We'll also
want to expose this for multi-part payments.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
minidisk1147
Christian Decker
darosior
lisa neigut
Michael Schmoock
Vasil Dimov
Rusty Russell