mirror of
https://github.com/lightningnetwork/lnd.git
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7dfe4018ce
This commit was previously split into the following parts to ease review: - 2d746f68: replace imports - 4008f0fd: use ecdsa.Signature - 849e33d1: remove btcec.S256() - b8f6ebbd: use v2 library correctly - fa80bca9: bump go modules
81 lines
2.5 KiB
Go
81 lines
2.5 KiB
Go
package lnwire
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import (
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"bytes"
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"io"
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"github.com/btcsuite/btcd/btcec/v2"
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)
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// FundingLocked is the message that both parties to a new channel creation
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// send once they have observed the funding transaction being confirmed on the
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// blockchain. FundingLocked contains the signatures necessary for the channel
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// participants to advertise the existence of the channel to the rest of the
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// network.
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type FundingLocked struct {
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// ChanID is the outpoint of the channel's funding transaction. This
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// can be used to query for the channel in the database.
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ChanID ChannelID
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// NextPerCommitmentPoint is the secret that can be used to revoke the
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// next commitment transaction for the channel.
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NextPerCommitmentPoint *btcec.PublicKey
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// ExtraData is the set of data that was appended to this message to
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// fill out the full maximum transport message size. These fields can
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// be used to specify optional data such as custom TLV fields.
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ExtraData ExtraOpaqueData
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}
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// NewFundingLocked creates a new FundingLocked message, populating it with the
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// necessary IDs and revocation secret.
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func NewFundingLocked(cid ChannelID, npcp *btcec.PublicKey) *FundingLocked {
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return &FundingLocked{
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ChanID: cid,
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NextPerCommitmentPoint: npcp,
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ExtraData: make([]byte, 0),
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}
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}
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// A compile time check to ensure FundingLocked implements the lnwire.Message
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// interface.
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var _ Message = (*FundingLocked)(nil)
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// Decode deserializes the serialized FundingLocked message stored in the
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// passed io.Reader into the target FundingLocked using the deserialization
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// rules defined by the passed protocol version.
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//
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// This is part of the lnwire.Message interface.
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func (c *FundingLocked) Decode(r io.Reader, pver uint32) error {
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return ReadElements(r,
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&c.ChanID,
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&c.NextPerCommitmentPoint,
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&c.ExtraData,
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)
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}
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// Encode serializes the target FundingLocked message into the passed io.Writer
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// implementation. Serialization will observe the rules defined by the passed
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// protocol version.
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//
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// This is part of the lnwire.Message interface.
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func (c *FundingLocked) Encode(w *bytes.Buffer, pver uint32) error {
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if err := WriteChannelID(w, c.ChanID); err != nil {
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return err
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}
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if err := WritePublicKey(w, c.NextPerCommitmentPoint); err != nil {
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return err
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}
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return WriteBytes(w, c.ExtraData)
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}
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// MsgType returns the uint32 code which uniquely identifies this message as a
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// FundingLocked message on the wire.
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//
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// This is part of the lnwire.Message interface.
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func (c *FundingLocked) MsgType() MessageType {
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return MsgFundingLocked
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}
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