12430766295

Committed 20 Dec 2024 11:38AM UTC coverage: 52.607% (-6.1%) from 58.716%

Build # 12430766295

Build Type

Pull #9384

github

Committed by

ziggie1984

Commit Message

funding: refactor gossip msg code

We almost never need to create all messages at the same time
(ChanUpdate,ChanAnnouncement,Proof) so we split it up into own
functions.

Pull Request Pull Request #9384: Refactor gossip msg code

Run Details

224 of 279 new or added lines in 7 files covered. (80.29%)

27070 existing lines in 437 files now uncovered.

53540 of 101773 relevant lines covered (52.61%)

4.11 hits per line

Source File
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0.0

/netann/msg_hash.go

package netann

import (
        "github.com/btcsuite/btcd/chaincfg/chainhash"
)

// MsgHashTag will prefix the message name and the field name in order to
// construct the message tag.
const MsgHashTag = "lightning"

// MsgTag computes the full tag that will be used to prefix a message before
// calculating the tagged hash. The tag is constructed as follows:
//
//        tag = "lightning"||"msg_name"||"field_name"
func MsgTag(msgName, fieldName string) []byte {
        tag := []byte(MsgHashTag)
        tag = append(tag, []byte(msgName)...)

        return append(tag, []byte(fieldName)...)
}

// MsgHash computes the tagged hash of the given message as follows:
//
//        tag = "lightning"||"msg_name"||"field_name"
//        hash = sha256(sha246(tag) || sha256(tag) || msg)
func MsgHash(msgName, fieldName string, msg []byte) *chainhash.Hash {
        tag := MsgTag(msgName, fieldName)

        return chainhash.TaggedHash(tag, msg)
}

1	package netann
2
3	import (
4	"github.com/btcsuite/btcd/chaincfg/chainhash"
5	)
6
7	// MsgHashTag will prefix the message name and the field name in order to
8	// construct the message tag.
9	const MsgHashTag = "lightning"
10
11	// MsgTag computes the full tag that will be used to prefix a message before
12	// calculating the tagged hash. The tag is constructed as follows:
13	//
14	// tag = "lightning"\|\|"msg_name"\|\|"field_name"
UNCOV 15	func MsgTag(msgName, fieldName string) []byte {	×
UNCOV 16	tag := []byte(MsgHashTag)	×
UNCOV 17	tag = append(tag, []byte(msgName)...)	×
UNCOV 18		×
UNCOV 19	return append(tag, []byte(fieldName)...)	×
UNCOV 20	}	×
21
22	// MsgHash computes the tagged hash of the given message as follows:
23	//
24	// tag = "lightning"\|\|"msg_name"\|\|"field_name"
25	// hash = sha256(sha246(tag) \|\| sha256(tag) \|\| msg)
UNCOV 26	func MsgHash(msgName, fieldName string, msg []byte) *chainhash.Hash {	×
UNCOV 27	tag := MsgTag(msgName, fieldName)	×
UNCOV 28		×
UNCOV 29	return chainhash.TaggedHash(tag, msg)	×
UNCOV 30	}	×

lightningnetwork / lnd / 12430766295

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