In this commit, the ChannelUpdate message verification and validation
functions are moved from `routing` to methods on the ChannelUpdate
struct in `lnwire`.
This commit makes an lnwallet.BlockChainIO available to the gossiper and
uses it to construct a helper that can be used to fetch the pk script
for a given SCID. This will be used for channel announcement
verification in an upcoming commit.
Add new FirstBlockHeight and BlockRange TLV fields to the
GossipTimestampRange message. This will be used to query for Gossip 1.75
messages which are timestamped using block height instead of Unix
timestamps.
In preparation for Gossip 1.75, we add new TLV's to the `ChannelReady`
message. Namely: `AnnouncementBitcoinNonce` and `AnnouncementNodeNonce`.
These will be used to exchange nones required for producing the partial
signature to be send in the `AnnouncementSignatures2` message.
The type numbers for these new fields are even because if they are set,
then a peer is expecting its peer to understand gossip 1.75 and the new
fields.
In preparation for adding the new ChannelAnnouncement2 message along
with a ChannelAnnouncement interface, we rename the existing message to
ChannelAnnouncement1.
In preparation for adding a new message, AnnounceSignatures2 along with
an AnnounceSignatures interface, we rename the existing message to
AnnounceSignatures1.
This commit squashes the below operations for a net result where
we have an expanded capability of assessing pending updates. This
is made possible by packing the components into Duals in the prior
commits. We squash the operations to simplify review.
htlcswitch+lnwallet: rename PendingLocalUpdateCount
lnwallet: complete pending update queries API for LightningChannel
lnwallet+htlcswitch: consolidate NumPendingUpdates using ChannelParty
This commit makes the observation that we can cleanly define the
NumPendingUpdates function using a single expression by taking
advantage of the relevant fields being properly packed into Duals.
This is yet another commit that packs a symmetric structure into
a Dual. This is the last one needed for the time being to consolidate
Num{X}UpdatesPendingOn{Y} functions into a single one.
This commit, like the last one packs the update logs into a symmetric
Dual structure. This will allow us to index into them more concisely
in higher order logic.
This commit packs the LightningChannel's localCommitmentChain and
remoteCommitmentChain into a Dual structure for better symmetric
access. This will be leveraged by an upcoming commit where we want
to more concisely express how we compute the number of pending
updates.
In this commit, we start to thread thru the new aux tap leaf structures to all relevant areas. This includes: commitment outputs, resolution creation, breach handling, and also HTLC scripts.
This may be useful for custom channel types that base everything off the index (a global value) rather than the output index (can change with each state).
In this commit, we add a TLV blob to the PaymentDescriptor struct. We also now thread through this value from the UpdateAddHTLC message to the PaymentDescriptor mapping, and the other way around.
In this commit, we add a new AuxLeafStore which can be used to dynamically fetch the latest aux leaves for a given state. This is useful for custom channel types that will store some extra information in the form of a custom blob, then will use that information to derive the new leaf tapscript leaves that may be attached to reach state.
In this commit, we also add the custom TLV blob to the internal commitment struct that we use within the in-memory commitment linked list.
This'll be useful to ensure that we're tracking the current blob for our in memory commitment for when we need to write it to disk.
In this commit, for each channel, we'll now start to store an optional custom blob. This can be used to store extra information for custom channels in an opauqe manner.
In this commit, we update all the taproot scripts to also accept an
optional aux leaf. This aux leaf can be used to add more redemption
paths for advanced channels, or just as an extra commitment space.
With this commit, the channel is now aware of if it's a musig2 channel, that also has a tapscript root. We'll need to always pass in the tapscript root each time we: make the funding output, sign a new state, and also verify a new state.
This isn't hooked up yet to the funding manager, but with this commit, we can now start to write internal unit tests that handle musig2 channels with a tapscript root.
In this commit, we consolidate the root bucket TLVs into a new struct.
This makes it easier to see all the new TLV fields at a glance. We also
convert TLV usage to use the new type param based APis.
This commit hooks up the banman to the gossiper:
- peers that are banned and don't have a channel with us will get
disconnected until they are unbanned.
- peers that are banned and have a channel with us won't get
disconnected, but we will ignore their channel announcements until
they are no longer banned. Note that this only disables gossip of
announcements to us and still allows us to open channels to them.
