This was not properly enforced and would be a spec violation on the
peer's end. Also re-use a pong buffer to save on heap allocations if
there are a lot of peers. The pong buffer is only read from, so this
is concurrent safe.
In this commit, we fix an inadvertent memory leak by ensuring we always
use `defer` to clean up the allocated objects/memory we use to be
notified of new blocks to update what we send within the set of ping
headers.
A further optimization here would be using a single global block epoch
housed within the server, that all peer `pingHandler` goroutines use
directly.
Fixes#6143.
This commit modifies the channel state machine to be able to derive the
proper commitment and second-level HTLC output scripts required by the
new script-enforced leased channel commitment type.
Pass htlc amount down to the channel so that we don't need to rely
on minHtlc (and pad it when the channel sets a 0 min htlc). Update
test to just check some sane values since we're no longer relying
on minHtlc amount at all.
To simplify the message signing API even further, we refactor the
lnwallet.MessageSigner interface to use a key locator instead of the
public key to identify which key should be signed with.
To make it possible to use a remote lnrpc server as a signer for our
wallet, we need to change our main interface to sign the message instead
of the message's digest. Otherwise we'd need to alter the
lnrpc.SignMessage RPC to accept a digest instead of only the message
which has security implications.
In this commit, we take an initial step towards converting the existing
breach arbiter and utxo nursery logic into contract resolvers by moving
the files as is, into the `contractcourt` pacakge.
This commit is primarily move only, though we had to massage some
interfaces and config names along the way to make things compile and the
tests run properly.
This commit adds a missing return statement to pingHandler. This
prevents a nil pointer dereference panic from happening if an error is
returned from RegisterBlockEpochNtfn.
Adds a new Brontide struct method tryLinkShutdown that attempts to
fetch the target link and calls ShutdownIfChannelClean on it. This
allows the coop close process to guarantee atomicity of the underlying
channel state. Also removes the UnregisterChannel method from the
chancloser's config as the link is shut down before the chancloser
is created.
In this commit, which builds on top of the prior commit, rather than
using the returned buffer outside of the closure (which means it'll be
copied), we instead use it within the `Submit` closure instead. With the
recent changes to the `brontide` package, we won't allocate any new
buffer when we decrypt, as a result, the `rawMsg` byte slice actually
just slices into the passed `buf` slice (obtained from the pool)`.
With this change, we ensure that the buffer pool can release the slice
back to the pool and eliminate any extra allocations along the way.
In this commit, we implement a long discussed mechanism to use the
Lightning Network as a redundant block header source. By sending our
latest block header with each ping message, we give peers another source
(outside of the Bitcoin P2P network) they can use to spot check their
chain state. Peers can also use this information to detect if they've
been eclipsed from the traditional Bitcoin P2P network itself.
As is, we only send this data in Ping messages (which are periodically
sent), in the future we could also move to send them as the partial
payload for our pong messages, and also randomize the payload size
requested as well.
This commit allows the peer to be tested without relying on a raw
htlcswitch.Switch pointer. This is accomplished by using a messageSwitch
interface and adding the CreateAndAddLink method to the
htlcswitch.Switch.
This commit adds a new config option: "--coop-close-target-confs"
which allows a user to override the default target confirmations of 6
that is used to estimate a fee rate to use during a co-op closure
initiated by a remote peer.
Add a new boolean parameter without changing any existing
functionality. The parameter will be used to indicate
whether a request to update a channel's status was made
manually by a user (currently always false).
In this commit, we fix an issue that would cause peers running lnd 0.12
to not be able to connect to existing peers due to a feature bit
compatibility issue. In a recent PR we started to downgrade our required
feature bit for static key from required to optional, if we had a legacy
(non-tweakless) open with the peer then we would unset the required bit
and set the optional bit to ensure we could still connect to them.
The change implementing this new version of downgrade failed _also_
unset the bit (the required bit) in the "legacy global" feature bit
section. This caused the `RawFeatureVector.Merge` method to fail as we
would have the required bit set in the `GlobalFeatures` section, but the
optional bit set in the `Features` section. The `Merge` method ensures
that a required and optional bit can't be set in two different locations
for the same feature.
This PR fixes this issue by also unsetting the bit in the
`GlobalFeatures` field in the init message.
Fixes#4871
This commit caps the update fee the initiator will send when the anchors
channel type is used. We do not limit anything on the receiver side.
10 sat/vbyte is the current default max fee rate we use. This should be
enough to ensure propagation before anchoring down the commitment
transaction.
This commit unsets option static remote key required for peers that
we have existing legacy channels with. This ensures that we can still
connect to peers that do not recognize this feature bit that we have
existing channels with.
This commit changes the logic when garbage collecting forwarding
packages such that they are removed once when the function is called,
and then again upon subsequent ticks. This allows us to bump the
peer timer to 1 hour to limit the number of db transactions happening
in lnd. The forwarding packages need to be removed initially as
otherwise a flappy node will never have them garbage collected.
Oliver Gugger