This was decided at a recent spec meeting: in particular, mpp and
var_onion_optin options will be used here.
We enhanced "features_supported" into "features_unsupported" so it
can return the first un-handlable bit number.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Also pulls in a new onion error (mpp_timeout). We change our
route_step_decode_end() to always return the total_msat and optional
secret.
We check total_amount (to prohibit mpp), but we do nothing with
secret for now other than hand it to the htlc_accepted hook.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
1. "conf" can't be specified in a configuration file.
2. "lightning-dir" can't be specified in a configuration file unless the file
was explicitly set with --conf=.
3. "network" options can't be set in a per-network configuration file.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-changed: .lightningd plugins and files moved into <network>/ subdir
Changelog-changed: WARNING: If you don't have a config file, you now may need to specify the network to lightning-cli
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This lets you have a default, but also a network-specific config.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-changed: Options: `config` and <network>/`config` read by default.
lightning-cli is going to need to know what network we're on, so
it will need to parse the config files. Move the code which does
the initial bootstrap parsing into common, as well as the config
file parsing core.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We have consolidated the two functions into a single `route_step_decode`
function, and made it static since we call it in the `process_onionpacket`
function. We remove the two exposed functions since they're no longer useful.
We wire in the code-generated function, which removes the upfront validation
and add the validation back after the `htlc_accepted` hook returns. If a
plugin wanted to handle the onion in a special way it'll not have told us to
just continue.
So far we've only handled legacy payloads, which meant we could drop the realm
byte since it was always 0x00. Once we start handling TLV payloads the first
byte, i.e., the former realm byte, is important since it gives us the length
of the payload. This is a breaking change, however I don't think there's
anyone using the `raw_payload` as of yet.
Changelog-Changed: JSON-RPC: the `raw_payload` now includes the first byte, i.e., the realm byte, of the payload as well. This allows correct decoding of a TLV payload in the plugins.
This simplifies our tests, too, since we don't need a magic option to
enable io logging in subdaemons.
Note that test_bad_onion still takes too long, due to a separate minor
bug, so that's marked and left dev-only for now.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This is ignored in subdaemons which are per-peer, but very useful for
multi-peer daemons like connectd and gossipd.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-changed: JSON API: `htlc_accepted` hook has `type` (currently `legacy` or `tlv`) and other fields directly inside `onion`.
Changelog-deprecated: JSON API: `htlc_accepted` hook `per_hop_v0` object deprecated, as is `short_channel_id` for the final hop.
If you're replaying or syncing with the blockchain, show that error
instead of 'cannot afford', in the case of not having enough utxos
to pay for a transaction. This is the 'more correct' error to show, as
there's a chance that the funds you're expecting to spend are in the
portion of the blockchain that hasn't been synced yet.
This is mainly an internal-only change, especially since we don't
offer any globalfeatures.
However, LND (as of next release) will offer global features, and also
expect option_static_remotekey to be a *global* feature. So we send
our (merged) feature bitset as both global and local in init, and fold
those bitsets together when we get an init msg.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
By combining set_state() with selected_peer() we can give a single log
line describing what we're asking for, from whom.
We also add more verbosity to a few key areas, such as gossip rotation
and when gossipd tells a peer to send an error. And move a comment which
was above the wrong function (due to rebase?).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We often want a pointer which will turn to NULL if the pointed-to thing is
freed. This is possible with tal objects, so create it.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
I have seen some strange flakiness (under VALGRIND), which I have
traced down to dev-disconnect "+" not working as expected. In
particular, the message is not sent out before closing the fd.
This seems to fix it on Linux, though it's so intermittant that it's hard
to be completely sure.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This patch adds a channel_id parameter to allow for specifying
channels that are lacking a short_channel_id.
Useful in the case where a peer has 1) multiple channels (ONCHAIN etc)
and 2) a channel where the funding transaction hasn't been
broadcast/mined.
According to the doc (https://download.libsodium.org/doc):
"sodium_init() initializes the library and should be called before
any other function provided by Sodium. [...]
the function ensures that the system's random number generator has
been properly seeded.".
Currently the only source for amount_asset is the value getter on a tx output,
and we don't hand it too far around (mainly ignoring it if it isn't the
chain's main currency). Eventually we could bubble them up to the wallet, use
them to select outputs or actually support assets in the channels.
Since we don't hand them around too widely I thought it was ok for them to be
pass-by-value rather than having to allocate them and pass them around by
reference. They're just 41 bytes currently so the overhead should be ok.
Signed-off-by: Christian Decker <@cdecker>
We now have a pointer to chainparams, that fails valgrind if we do anything
chain-specific before setting it.
Suggested-by: Rusty Russell <@rustyrussell>
Elements requires us to have an explicit fee output instead of bitcoin's
implied fee. We add the fee output mostly after sorting the other outputs
since that matches the behavior in elements itself.
Signed-off-by: Christian Decker <decker.christian@gmail.com>
Using a global variable is a bit lazy, but weaving the network type through
the entire stack is a daunting task. Maybe we can make that happen at a later
stage.
Most of the changes in `chainparams.c` are just formatting the
`genesis_blockhash` a bit nicer (`clang-format` to the rescue).
Signed-off-by: Christian Decker <decker.christian@gmail.com>
Rusty Russell
Christian Decker
lisa neigut
darosior