Commit Graph

1045 Commits

Author SHA1 Message Date
Rusty Russell d3f370944e Makefile: update to latest spec.
This includes anysegwit and the updated HTLC tiebreak test vector.  It
also adds explicit wording for invalid per_commitment_secret (which
nicely matches our code already!).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2021-05-26 20:01:03 +09:30
Rusty Russell b6223eb117 lightningd: option_shutdown_anysegwit is no longer experimental.
https://github.com/lightningnetwork/lightning-rfc/pull/672 was merged.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Added: Protocol: `option_shutdown_anysegwit` allows future segwit versions on shutdown transactions.
2021-05-26 20:01:03 +09:30
Nalin Bhardwaj 94419c7d73 common: Check chain hash in gossip_timestamp_filter
Changelog-Fixed: Validate chain hash for gossip_timestamp_filter messages
2021-05-26 10:43:50 +09:30
Antoine Poinsot fe8074c8c3 Refuse to parse v2 onion addresses without deprecated_apis
Tor v2 hidden services have been deprecated for a while:
https://blog.torproject.org/v2-deprecation-timeline .

This prevents user from being able to set them in the configuration
and to connect to them while still letting us be able to parse them
for gossip.

Changelog-Deprecated: lightningd: v2 Tor addresses.  Use v3.  See https://blog.torproject.org/v2-deprecation-timeline.

Signed-off-by: Antoine Poinsot <darosior@protonmail.com>
2021-05-24 20:22:45 +09:30
Antoine Poinsot 7bf17572b5 wireaddr: fix indentation / line breaks for autotor parsing
It really affected readability.

Signed-off-by: Antoine Poinsot <darosior@protonmail.com>
2021-05-24 20:22:45 +09:30
Rusty Russell 46b735c023 dijkstra: add chan pointer argument to path scoring.
For fuzz, we will need some fixed per-channel data (so we always fuzz
a channel the same way).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2021-05-22 17:53:04 +09:30
Rusty Russell 3832542d27 common/dijkstra: remove dijkstra_amount().
Unless you're using amount as the sole cost function (we don't!), the
"cost" is not the "amount".

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2021-05-22 17:53:04 +09:30
Rusty Russell 2bb365a931 common/route: route_from_dijkstra returns route_hop array.
This is what (most) callers actually want, so unify it into one place.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2021-05-22 17:53:04 +09:30
Rusty Russell 9dadcc858b common/gossip_store: avoid fd pass for new store, use end marker.
This is also simpler.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2021-05-22 17:53:04 +09:30
Rusty Russell c2a88912e1 common/gossmap: reload once we hit end marker.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2021-05-22 17:53:04 +09:30
Rusty Russell 167681c709 gossmap: fix gossmap_chan_get_announce() and gossmap_node_get_announce().
These were never used, nor tested.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2021-05-22 17:53:04 +09:30
Rusty Russell d54abd0e36 gossmap: function to get channel features bitmap.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2021-05-22 17:53:04 +09:30
Rusty Russell 770a328d56 gossmap: save the offset where the channel updates are, function for details.
This takes an extra 8 bytes per channel, but means we can go back and
get more information about them; this is implemented in
gossmap_chan_get_update_details() which is what listchannels will need.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2021-05-22 17:53:04 +09:30
Rusty Russell d1f8a5f0be gossmap: add gossmap_chan_get_capacity() helper.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2021-05-22 17:53:04 +09:30
Rusty Russell eb370ab8ff gossmap: remembers when a channel is private.
Steals one bit from the scid_off, and turns that into a relative
offset.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2021-05-22 17:53:04 +09:30
Rusty Russell cc198748d4 common/json_tok: hoist param_short_channel_id from inside lightningd/
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2021-05-22 17:53:04 +09:30
Rusty Russell 088cfced18 common/test/run-route and run-route-specific: modern gossmap tests
Equivalent to gossipd/test/run-find_route.c and gossipd/test/run-find_route-specific.c
except they use gossmap.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2021-05-22 17:53:04 +09:30
Rusty Russell 25b5e1e099 update-mocks: make sure we cover all test programs.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2021-05-22 17:53:04 +09:30
Christian Decker 7f15f86718 libhsmd: First working build script for libhsmd-python
Changelog-Added: libhsmd: Added python bindings for `libhsmd`
2021-05-15 09:31:12 +09:30
niftynei 16c92b7da3 amount: `amount_sat_scale` method
For scaling/multiplying sats
2021-05-03 11:06:10 +09:30
niftynei 9ba2f614bb psbt-open: method to quickly check if has our input
For dual-funding's accepter plugin, we only want to send
psbts that need to be signed to `signpsbt`; this lets us quickly check
if they're "signable"
2021-05-03 11:06:10 +09:30
Rusty Russell e64e6ba283 channeld: don't ever send back-to-back feerate changes.
There are several reports of desynchronization with LND here; a simple
approach is to only have one feerate change in flight at any time.

Even if this turns out to be our fault, it's been a historic area of
confusion, so this restriction seems reasonable.

Changelog-Fixed: Protocol: Don't create more than one feerate change at a time, as this seems to desync with LND.
Fixes: #4152
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2021-04-24 13:57:33 +09:30
Rusty Russell 8714bf903c subd: send versions at startup.
For channeld, we move status_setup_sync() to a more obvious place.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2021-04-24 13:56:58 +09:30
Rusty Russell b36e9fe473 status: new message for subdaemons to tell us their versions.
For this patch we simply abort if it's wrong.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2021-04-24 13:56:58 +09:30
Rusty Russell 3ccb6d6e7a Makefile: update to latest BOLT versions.
The main change which affects us is that 2016 blocks to forget a channel
is a fixed number in the spec; we make this clear by renaming the
(developer-only) max_funding_unconfirmed to dev_max_funding_unconfirmed
and making it compile DEVELOPER only.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2021-04-07 14:34:39 +09:30
Rusty Russell 7b853d0fa5 gossip_store: don't make bogus assumption that writes are atomic wrt readers.
They're not defined to be, though we've not seen this on Linux (testing
showed that it is page-level atomic, which means it can still happen across
page boundaries though!).  This was pointed out by whitslack in
https://github.com/ElementsProject/lightning/issues/4288

In practice, this just means not complaining when it happens, and also
not trying to get tricky to use it on MacOS (we can safely seek & write,
since we're single-threaded).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Removed: Removed bogus UNUSUAL log about gossip_store 'short test'.
2021-03-31 12:26:21 +10:30
niftynei e549746578 features: match up feature names to feature bit
Aligns the feature bit number to the name-label. Is this correct?
2021-03-25 20:05:11 +10:30
niftynei 3e8f575f9e dual-funding: convert to runtime flag, --experimental-dual-fund
You can now activate dual-funded channels using the
`--experimental-dual-fund` flag

Changelog-Changed: Config: `--experimental-dual-fund` runtime flag will enable dual-funded protocol on this node
2021-03-25 20:05:11 +10:30
niftynei 737658503f dual-funding: use correct feature bit number!!
Use designated feature bit, instead of future-bit.
2021-03-25 20:05:11 +10:30
Rusty Russell de52abbcde common: fix MacOS compile error.
clang 10.0.0 (erroneously?) claims an enum_side cannot be >= NUM_SIDES.
Make it clear that we're testing the raw u8 for validity.

Fixes: #4409
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2021-03-23 14:24:38 -05:00
Rusty Russell cc6d2afe21 Experimental option option_shutdown_wrong_funding: help me, I screwed up!
It's not unheard of for people to give the wrong funding tx to us,
getting their funds stuck.  Interestingly, we can allow mutual close
using a different txid and output number as long as they (solely)
funded the channel, and the channel hasn't been used.

This defines a "play area" feature to do just that.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2021-03-16 13:08:40 +10:30
Christian Decker a6c857dadb pay: Add functions to tell bolt12 string apart
The functions just look at the hrp, so they're not guaranteed to guess
right, but for this case it's sufficient.
2021-03-11 14:09:51 +10:30
niftynei a5fedc4e1f df-spec: use an empty bit-set as the basepoint for chan-id at start
> If the peer's revocation basepoint is unknown (e.g. `open_channel2`),
> a temporary `channel_id` should be found by using a zeroed out basepoint
> for the unknown peer.
2021-03-09 14:55:05 +10:30
niftynei 31e3bdb42d df-spec: consolidate dual-funding patches, update feerate protocol
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.
2021-03-09 14:55:05 +10:30
Rusty Russell 4deb9311ce Makefile: fix parallel build error on clean tree.
Caused by missing common/iso4217.c from common/Makefile:

```
In file included from ./common/iso4217.h:4,
                 from common/iso4217.c:3:
./wire/wire.h:7:10: fatal error: secp256k1_recovery.h: No such file or directory
    7 | #include <secp256k1_recovery.h>
      |          ^~~~~~~~~~~~~~~~~~~~~~
compilation terminated.
make: *** [Makefile:265: common/iso4217.o] Error 1
```

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2021-03-03 16:36:22 -06:00
niftynei 1e9a900918 df: start of RPC for bumping the fee!
Doesn't call into dualopend yet
2021-03-03 16:19:04 -06:00
Rusty Russell 8af5764a9c json: fix oom when adding a long string 2021-03-03 09:18:53 +10:30
Rusty Russell d0946b75bc common: support opt_shutdown_anysegwit checks (EXPERIMENTAL_FEATURES).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2021-03-02 14:42:34 +10:30
Rusty Russell 66dda32da2 common/shutdown_scriptpubkey: extract shutdown scriptpubkey test.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2021-03-02 14:42:34 +10:30
Christian Decker c78e2cc024 test: Fix memory leak in unit test run-gossmap_local
This was likely missed because we don't run the tests under valgrind anymore
due to time constraints. I do run them on a semi-regular basis, which is why
I found this.
2021-03-02 11:56:59 +10:30
Rusty Russell 45ce7380af doc: update BOLT quotes (to include links for anchor outputs).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2021-02-25 13:23:16 +10:30
Rusty Russell 6b11cc8b8c common: disallow NULL channel_id to peer_failed_err.
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.
2021-02-04 12:02:52 +10:30
Rusty Russell f4ee41a989 common: remove peer_failed in favor of peer_failed_warn/peer_failed_err
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.
2021-02-04 12:02:52 +10:30
Rusty Russell e6cefc4b00 common: infrastructure to construct warning messages.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2021-02-04 12:02:52 +10:30
Rusty Russell d14e273b04 common: treat all "all-channels" errors as if they were warnings.
This is in line with the warnings draft, where all-zeroes in a
channel_id is no longer special (i.e. it will be ignored).

But gossipd would send these if it got upset with us, so it's best
practice to ignore them for now anyway.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Added: Protocol: we treat error messages from peer which refer to "all channels" as warnings, not errors.
2021-02-04 12:02:52 +10:30
Rusty Russell a7c5a1f1d2 lightningd: implement receiving warnings.
This takes from the draft spec at https://github.com/lightningnetwork/lightning-rfc/pull/834

Note that if this draft does not get included, the peer will simply
ignore the warning message (we always close the connection afterwards
anyway).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Added: Protocol: we now report the new (draft) warning message.
2021-02-04 12:02:52 +10:30
Rusty Russell c5bd518d2f gossmap: change local API.
Now we create a separate set of local mods, and apply and unapply it.
This is more efficient than the previous approach, since we can do
some work up-front.  It's also more graceful (and well-defined) when a
local modification overlaps an existing one.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2021-02-04 12:02:36 +10:30
Rusty Russell 1490ae4cf6 common: support transitory local map additions to gossmap.
This will let us add routehints to the map and use dijkstra etc like
normal.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2021-02-04 12:02:36 +10:30
Rusty Russell 3fc8b1cd20 common: fix gossmap min/max rounding.
They were backwards.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2021-02-04 12:02:36 +10:30
Rusty Russell cc4ea9420a common: extract fp16 routines into their own file.
We might want to use them elsewhere.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2021-02-04 12:02:36 +10:30