14358372723

Committed 09 Apr 2025 01:26PM UTC coverage: 56.696% (-12.3%) from 69.037%

Build # 14358372723

Build Type

Pull #9696

github

Committed by

web-flow

Commit Message

Merge e2837e400 into 867d27d68

Pull Request Pull Request #9696: Add `development_guidelines.md` for both human and machine

Run Details

107055 of 188823 relevant lines covered (56.7%)

22721.56 hits per line

Source File
Press 'n' to go to next uncovered line, 'b' for previous

23.73

/netann/node_announcement.go

package netann

import (
        "bytes"
        "image/color"
        "net"
        "time"

        "github.com/btcsuite/btcd/btcec/v2"
        "github.com/btcsuite/btcd/chaincfg/chainhash"
        "github.com/go-errors/errors"
        "github.com/lightningnetwork/lnd/keychain"
        "github.com/lightningnetwork/lnd/lnwallet"
        "github.com/lightningnetwork/lnd/lnwire"
)

// NodeAnnModifier is a closure that makes in-place modifications to an
// lnwire.NodeAnnouncement.
type NodeAnnModifier func(*lnwire.NodeAnnouncement)

// NodeAnnSetAlias is a functional option that sets the alias of the
// given node announcement.
func NodeAnnSetAlias(alias lnwire.NodeAlias) func(*lnwire.NodeAnnouncement) {
        return func(nodeAnn *lnwire.NodeAnnouncement) {
                nodeAnn.Alias = alias
        }
}

// NodeAnnSetAddrs is a functional option that allows updating the addresses of
// the given node announcement.
func NodeAnnSetAddrs(addrs []net.Addr) func(*lnwire.NodeAnnouncement) {
        return func(nodeAnn *lnwire.NodeAnnouncement) {
                nodeAnn.Addresses = addrs
        }
}

// NodeAnnSetColor is a functional option that sets the color of the
// given node announcement.
func NodeAnnSetColor(newColor color.RGBA) func(*lnwire.NodeAnnouncement) {
        return func(nodeAnn *lnwire.NodeAnnouncement) {
                nodeAnn.RGBColor = newColor
        }
}

// NodeAnnSetFeatures is a functional option that allows updating the features of
// the given node announcement.
func NodeAnnSetFeatures(features *lnwire.RawFeatureVector) func(*lnwire.NodeAnnouncement) {
        return func(nodeAnn *lnwire.NodeAnnouncement) {
                nodeAnn.Features = features
        }
}

// NodeAnnSetTimestamp is a functional option that sets the timestamp of the
// announcement to the current time, or increments it if the timestamp is
// already in the future.
func NodeAnnSetTimestamp(nodeAnn *lnwire.NodeAnnouncement) {
        newTimestamp := uint32(time.Now().Unix())
        if newTimestamp <= nodeAnn.Timestamp {
                // Increment the prior value to  ensure the timestamp
                // monotonically increases, otherwise the announcement won't
                // propagate.
                newTimestamp = nodeAnn.Timestamp + 1
        }
        nodeAnn.Timestamp = newTimestamp
}

// SignNodeAnnouncement signs the lnwire.NodeAnnouncement provided, which
// should be the most recent, valid update, otherwise the timestamp may not
// monotonically increase from the prior.
func SignNodeAnnouncement(signer lnwallet.MessageSigner,
        keyLoc keychain.KeyLocator, nodeAnn *lnwire.NodeAnnouncement) error {

        // Create the DER-encoded ECDSA signature over the message digest.
        sig, err := SignAnnouncement(signer, keyLoc, nodeAnn)
        if err != nil {
                return err
        }

        // Parse the DER-encoded signature into a fixed-size 64-byte array.
        nodeAnn.Signature, err = lnwire.NewSigFromSignature(sig)
        return err
}

// ValidateNodeAnn validates the node announcement by ensuring that the
// attached signature is needed a signature of the node announcement under the
// specified node public key.
func ValidateNodeAnn(a *lnwire.NodeAnnouncement) error {
        // Reconstruct the data of announcement which should be covered by the
        // signature so we can verify the signature shortly below
        data, err := a.DataToSign()
        if err != nil {
                return err
        }

        nodeSig, err := a.Signature.ToSignature()
        if err != nil {
                return err
        }
        nodeKey, err := btcec.ParsePubKey(a.NodeID[:])
        if err != nil {
                return err
        }

        // Finally ensure that the passed signature is valid, if not we'll
        // return an error so this node announcement can be rejected.
        dataHash := chainhash.DoubleHashB(data)
        if !nodeSig.Verify(dataHash, nodeKey) {
                var msgBuf bytes.Buffer
                if _, err := lnwire.WriteMessage(&msgBuf, a, 0); err != nil {
                        return err
                }

                return errors.Errorf("signature on NodeAnnouncement(%x) is "+
                        "invalid: %x", nodeKey.SerializeCompressed(),
                        msgBuf.Bytes())
        }

        return nil
}

1	package netann
2
3	import (
4	"bytes"
5	"image/color"
6	"net"
7	"time"
8
9	"github.com/btcsuite/btcd/btcec/v2"
10	"github.com/btcsuite/btcd/chaincfg/chainhash"
11	"github.com/go-errors/errors"
12	"github.com/lightningnetwork/lnd/keychain"
13	"github.com/lightningnetwork/lnd/lnwallet"
14	"github.com/lightningnetwork/lnd/lnwire"
15	)
16
17	// NodeAnnModifier is a closure that makes in-place modifications to an
18	// lnwire.NodeAnnouncement.
19	type NodeAnnModifier func(*lnwire.NodeAnnouncement)
20
21	// NodeAnnSetAlias is a functional option that sets the alias of the
22	// given node announcement.
23	func NodeAnnSetAlias(alias lnwire.NodeAlias) func(*lnwire.NodeAnnouncement) {	×
24	return func(nodeAnn *lnwire.NodeAnnouncement) {	×
25	nodeAnn.Alias = alias	×
26	}	×
27	}
28
29	// NodeAnnSetAddrs is a functional option that allows updating the addresses of
30	// the given node announcement.
31	func NodeAnnSetAddrs(addrs []net.Addr) func(*lnwire.NodeAnnouncement) {	×
32	return func(nodeAnn *lnwire.NodeAnnouncement) {	×
33	nodeAnn.Addresses = addrs	×
34	}	×
35	}
36
37	// NodeAnnSetColor is a functional option that sets the color of the
38	// given node announcement.
39	func NodeAnnSetColor(newColor color.RGBA) func(*lnwire.NodeAnnouncement) {	×
40	return func(nodeAnn *lnwire.NodeAnnouncement) {	×
41	nodeAnn.RGBColor = newColor	×
42	}	×
43	}
44
45	// NodeAnnSetFeatures is a functional option that allows updating the features of
46	// the given node announcement.
47	func NodeAnnSetFeatures(features lnwire.RawFeatureVector) func(lnwire.NodeAnnouncement) {	×
48	return func(nodeAnn *lnwire.NodeAnnouncement) {	×
49	nodeAnn.Features = features	×
50	}	×
51	}
52
53	// NodeAnnSetTimestamp is a functional option that sets the timestamp of the
54	// announcement to the current time, or increments it if the timestamp is
55	// already in the future.
56	func NodeAnnSetTimestamp(nodeAnn *lnwire.NodeAnnouncement) {	×
57	newTimestamp := uint32(time.Now().Unix())	×
58	if newTimestamp <= nodeAnn.Timestamp {	×
59	// Increment the prior value to ensure the timestamp	×
60	// monotonically increases, otherwise the announcement won't	×
61	// propagate.	×
62	newTimestamp = nodeAnn.Timestamp + 1	×
63	}	×
64	nodeAnn.Timestamp = newTimestamp	×
65	}
66
67	// SignNodeAnnouncement signs the lnwire.NodeAnnouncement provided, which
68	// should be the most recent, valid update, otherwise the timestamp may not
69	// monotonically increase from the prior.
70	func SignNodeAnnouncement(signer lnwallet.MessageSigner,
71	keyLoc keychain.KeyLocator, nodeAnn *lnwire.NodeAnnouncement) error {	×
72		×
73	// Create the DER-encoded ECDSA signature over the message digest.	×
74	sig, err := SignAnnouncement(signer, keyLoc, nodeAnn)	×
75	if err != nil {	×
76	return err	×
77	}	×
78
79	// Parse the DER-encoded signature into a fixed-size 64-byte array.
80	nodeAnn.Signature, err = lnwire.NewSigFromSignature(sig)	×
81	return err	×
82	}
83
84	// ValidateNodeAnn validates the node announcement by ensuring that the
85	// attached signature is needed a signature of the node announcement under the
86	// specified node public key.
87	func ValidateNodeAnn(a *lnwire.NodeAnnouncement) error {	17✔
88	// Reconstruct the data of announcement which should be covered by the	17✔
89	// signature so we can verify the signature shortly below	17✔
90	data, err := a.DataToSign()	17✔
91	if err != nil {	18✔
92	return err	1✔
93	}	1✔
94
95	nodeSig, err := a.Signature.ToSignature()	16✔
96	if err != nil {	16✔
97	return err	×
98	}	×
99	nodeKey, err := btcec.ParsePubKey(a.NodeID[:])	16✔
100	if err != nil {	16✔
101	return err	×
102	}	×
103
104	// Finally ensure that the passed signature is valid, if not we'll
105	// return an error so this node announcement can be rejected.
106	dataHash := chainhash.DoubleHashB(data)	16✔
107	if !nodeSig.Verify(dataHash, nodeKey) {	16✔
108	var msgBuf bytes.Buffer	×
109	if _, err := lnwire.WriteMessage(&msgBuf, a, 0); err != nil {	×
110	return err	×
111	}	×
112
113	return errors.Errorf("signature on NodeAnnouncement(%x) is "+	×
114	"invalid: %x", nodeKey.SerializeCompressed(),	×
115	msgBuf.Bytes())	×
116	}
117
118	return nil	16✔
119	}

lightningnetwork / lnd / 14358372723

Source File Press 'n' to go to next uncovered line, 'b' for previous

Source File
Press 'n' to go to next uncovered line, 'b' for previous