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.
81 lines
2.3 KiB
Go
81 lines
2.3 KiB
Go
package lnwire
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import (
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"crypto/sha256"
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"io"
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)
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// UpdateFailMalformedHTLC is sent by either the payment forwarder or by
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// payment receiver to the payment sender in order to notify it that the onion
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// blob can't be parsed. For that reason we send this message instead of
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// obfuscate the onion failure.
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type UpdateFailMalformedHTLC struct {
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// ChanID is the particular active channel that this
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// UpdateFailMalformedHTLC is bound to.
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ChanID ChannelID
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// ID references which HTLC on the remote node's commitment transaction
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// has timed out.
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ID uint64
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// ShaOnionBlob hash of the onion blob on which can't be parsed by the
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// node in the payment path.
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ShaOnionBlob [sha256.Size]byte
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// FailureCode the exact reason why onion blob haven't been parsed.
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FailureCode FailCode
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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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// A compile time check to ensure UpdateFailMalformedHTLC implements the
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// lnwire.Message interface.
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var _ Message = (*UpdateFailMalformedHTLC)(nil)
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// Decode deserializes a serialized UpdateFailMalformedHTLC message stored in the passed
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// io.Reader observing the specified protocol version.
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//
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// This is part of the lnwire.Message interface.
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func (c *UpdateFailMalformedHTLC) 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.ID,
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c.ShaOnionBlob[:],
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&c.FailureCode,
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&c.ExtraData,
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)
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}
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// Encode serializes the target UpdateFailMalformedHTLC into the passed
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// io.Writer observing the protocol version specified.
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//
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// This is part of the lnwire.Message interface.
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func (c *UpdateFailMalformedHTLC) Encode(w io.Writer, pver uint32) error {
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return WriteElements(w,
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c.ChanID,
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c.ID,
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c.ShaOnionBlob[:],
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c.FailureCode,
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c.ExtraData,
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)
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}
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// MsgType returns the integer uniquely identifying this message type on the
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// wire.
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//
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// This is part of the lnwire.Message interface.
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func (c *UpdateFailMalformedHTLC) MsgType() MessageType {
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return MsgUpdateFailMalformedHTLC
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}
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// TargetChanID returns the channel id of the link for which this message is
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// intended.
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//
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// NOTE: Part of peer.LinkUpdater interface.
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func (c *UpdateFailMalformedHTLC) TargetChanID() ChannelID {
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return c.ChanID
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}
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