mirror of
https://github.com/lightningnetwork/lnd.git
synced 2024-11-20 02:27:21 +01:00
7ff04d8bad
Removes the MaxPayloadLength function from the Message interface and checks that each message payload is not greater than MaxMsgBody. Since all messages are now allowed to be 65535 bytes in size, the MaxPayloadLength is no longer needed.
74 lines
2.2 KiB
Go
74 lines
2.2 KiB
Go
package lnwire
|
|
|
|
import "io"
|
|
|
|
// Init is the first message reveals the features supported or required by this
|
|
// node. Nodes wait for receipt of the other's features to simplify error
|
|
// diagnosis where features are incompatible. Each node MUST wait to receive
|
|
// init before sending any other messages.
|
|
type Init struct {
|
|
// GlobalFeatures is a legacy feature vector used for backwards
|
|
// compatibility with older nodes. Any features defined here should be
|
|
// merged with those presented in Features.
|
|
GlobalFeatures *RawFeatureVector
|
|
|
|
// Features is a feature vector containing the features supported by
|
|
// the remote node.
|
|
//
|
|
// NOTE: Older nodes may place some features in GlobalFeatures, but all
|
|
// new features are to be added in Features. When handling an Init
|
|
// message, any GlobalFeatures should be merged into the unified
|
|
// Features field.
|
|
Features *RawFeatureVector
|
|
|
|
// ExtraData is the set of data that was appended to this message to
|
|
// fill out the full maximum transport message size. These fields can
|
|
// be used to specify optional data such as custom TLV fields.
|
|
ExtraData ExtraOpaqueData
|
|
}
|
|
|
|
// NewInitMessage creates new instance of init message object.
|
|
func NewInitMessage(gf *RawFeatureVector, f *RawFeatureVector) *Init {
|
|
return &Init{
|
|
GlobalFeatures: gf,
|
|
Features: f,
|
|
ExtraData: make([]byte, 0),
|
|
}
|
|
}
|
|
|
|
// A compile time check to ensure Init implements the lnwire.Message
|
|
// interface.
|
|
var _ Message = (*Init)(nil)
|
|
|
|
// Decode deserializes a serialized Init message stored in the passed
|
|
// io.Reader observing the specified protocol version.
|
|
//
|
|
// This is part of the lnwire.Message interface.
|
|
func (msg *Init) Decode(r io.Reader, pver uint32) error {
|
|
return ReadElements(r,
|
|
&msg.GlobalFeatures,
|
|
&msg.Features,
|
|
&msg.ExtraData,
|
|
)
|
|
}
|
|
|
|
// Encode serializes the target Init into the passed io.Writer observing
|
|
// the protocol version specified.
|
|
//
|
|
// This is part of the lnwire.Message interface.
|
|
func (msg *Init) Encode(w io.Writer, pver uint32) error {
|
|
return WriteElements(w,
|
|
msg.GlobalFeatures,
|
|
msg.Features,
|
|
msg.ExtraData,
|
|
)
|
|
}
|
|
|
|
// MsgType returns the integer uniquely identifying this message type on the
|
|
// wire.
|
|
//
|
|
// This is part of the lnwire.Message interface.
|
|
func (msg *Init) MsgType() MessageType {
|
|
return MsgInit
|
|
}
|