b26560e0f4
This commit adds the method DisconnectBlockAtHeight to the channel graph database, making it possible to "rewind" the database in case a block is disconnected from the main chain. To accomplish this, a prune log is introduced, making it possible to keep track of the point in time where the database was pruned. This is necessary for the case where lnd might wake up on a stale branch, and must "walk backwards" on this branch after it finds a common block fro the graph database and the new main chain.
1227 lines
35 KiB
Go
1227 lines
35 KiB
Go
package channeldb
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import (
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"bytes"
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"crypto/sha256"
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"fmt"
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"image/color"
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"math"
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"math/big"
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prand "math/rand"
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"net"
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"reflect"
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"runtime"
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"testing"
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"time"
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"github.com/boltdb/bolt"
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"github.com/davecgh/go-spew/spew"
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"github.com/lightningnetwork/lnd/lnwire"
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"github.com/roasbeef/btcd/btcec"
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"github.com/roasbeef/btcd/chaincfg/chainhash"
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"github.com/roasbeef/btcd/wire"
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)
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var (
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testAddr = &net.TCPAddr{IP: (net.IP)([]byte{0xA, 0x0, 0x0, 0x1}),
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Port: 9000}
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anotherAddr, _ = net.ResolveTCPAddr("tcp",
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"[2001:db8:85a3:0:0:8a2e:370:7334]:80")
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testAddrs = []net.Addr{testAddr, anotherAddr}
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randSource = prand.NewSource(time.Now().Unix())
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randInts = prand.New(randSource)
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testSig = &btcec.Signature{
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R: new(big.Int),
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S: new(big.Int),
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}
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_, _ = testSig.R.SetString("63724406601629180062774974542967536251589935445068131219452686511677818569431", 10)
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_, _ = testSig.S.SetString("18801056069249825825291287104931333862866033135609736119018462340006816851118", 10)
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testFeatures = lnwire.NewFeatureVector(nil, lnwire.GlobalFeatures)
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)
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func createTestVertex(db *DB) (*LightningNode, error) {
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updateTime := prand.Int63()
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priv, err := btcec.NewPrivateKey(btcec.S256())
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if err != nil {
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return nil, err
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}
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pub := priv.PubKey().SerializeCompressed()
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return &LightningNode{
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HaveNodeAnnouncement: true,
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AuthSig: testSig,
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LastUpdate: time.Unix(updateTime, 0),
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PubKey: priv.PubKey(),
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Color: color.RGBA{1, 2, 3, 0},
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Alias: "kek" + string(pub[:]),
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Features: testFeatures,
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Addresses: testAddrs,
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db: db,
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}, nil
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}
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func TestNodeInsertionAndDeletion(t *testing.T) {
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t.Parallel()
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db, cleanUp, err := makeTestDB()
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defer cleanUp()
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if err != nil {
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t.Fatalf("unable to make test database: %v", err)
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}
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graph := db.ChannelGraph()
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// We'd like to test basic insertion/deletion for vertexes from the
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// graph, so we'll create a test vertex to start with.
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_, testPub := btcec.PrivKeyFromBytes(btcec.S256(), key[:])
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node := &LightningNode{
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HaveNodeAnnouncement: true,
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AuthSig: testSig,
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LastUpdate: time.Unix(1232342, 0),
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PubKey: testPub,
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Color: color.RGBA{1, 2, 3, 0},
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Alias: "kek",
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Features: testFeatures,
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Addresses: testAddrs,
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db: db,
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}
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// First, insert the node into the graph DB. This should succeed
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// without any errors.
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if err := graph.AddLightningNode(node); err != nil {
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t.Fatalf("unable to add node: %v", err)
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}
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// Next, fetch the node from the database to ensure everything was
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// serialized properly.
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dbNode, err := graph.FetchLightningNode(testPub)
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if err != nil {
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t.Fatalf("unable to locate node: %v", err)
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}
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if _, exists, err := graph.HasLightningNode(testPub); err != nil {
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t.Fatalf("unable to query for node: %v", err)
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} else if !exists {
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t.Fatalf("node should be found but wasn't")
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}
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// The two nodes should match exactly!
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if err := compareNodes(node, dbNode); err != nil {
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t.Fatalf("nodes don't match: %v", err)
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}
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// Next, delete the node from the graph, this should purge all data
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// related to the node.
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if err := graph.DeleteLightningNode(testPub); err != nil {
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t.Fatalf("unable to delete node; %v", err)
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}
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// Finally, attempt to fetch the node again. This should fail as the
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// node should've been deleted from the database.
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_, err = graph.FetchLightningNode(testPub)
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if err != ErrGraphNodeNotFound {
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t.Fatalf("fetch after delete should fail!")
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}
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}
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// TestPartialNode checks that we can add and retrieve a LightningNode where
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// where only the pubkey is known to the database.
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func TestPartialNode(t *testing.T) {
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t.Parallel()
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db, cleanUp, err := makeTestDB()
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defer cleanUp()
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if err != nil {
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t.Fatalf("unable to make test database: %v", err)
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}
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graph := db.ChannelGraph()
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// We want to be able to insert nodes into the graph that only has the
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// PubKey set.
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_, testPub := btcec.PrivKeyFromBytes(btcec.S256(), key[:])
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node := &LightningNode{
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PubKey: testPub,
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HaveNodeAnnouncement: false,
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}
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if err := graph.AddLightningNode(node); err != nil {
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t.Fatalf("unable to add node: %v", err)
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}
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// Next, fetch the node from the database to ensure everything was
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// serialized properly.
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dbNode, err := graph.FetchLightningNode(testPub)
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if err != nil {
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t.Fatalf("unable to locate node: %v", err)
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}
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if _, exists, err := graph.HasLightningNode(testPub); err != nil {
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t.Fatalf("unable to query for node: %v", err)
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} else if !exists {
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t.Fatalf("node should be found but wasn't")
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}
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// The two nodes should match exactly! (with default values for
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// LastUpdate and db set to satisfy compareNodes())
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node = &LightningNode{
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PubKey: testPub,
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HaveNodeAnnouncement: false,
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LastUpdate: time.Unix(0, 0),
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db: db,
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}
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if err := compareNodes(node, dbNode); err != nil {
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t.Fatalf("nodes don't match: %v", err)
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}
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// Next, delete the node from the graph, this should purge all data
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// related to the node.
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if err := graph.DeleteLightningNode(testPub); err != nil {
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t.Fatalf("unable to delete node; %v", err)
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}
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// Finally, attempt to fetch the node again. This should fail as the
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// node should've been deleted from the database.
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_, err = graph.FetchLightningNode(testPub)
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if err != ErrGraphNodeNotFound {
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t.Fatalf("fetch after delete should fail!")
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}
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}
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func TestAliasLookup(t *testing.T) {
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t.Parallel()
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db, cleanUp, err := makeTestDB()
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defer cleanUp()
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if err != nil {
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t.Fatalf("unable to make test database: %v", err)
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}
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graph := db.ChannelGraph()
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// We'd like to test the alias index within the database, so first
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// create a new test node.
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testNode, err := createTestVertex(db)
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if err != nil {
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t.Fatalf("unable to create test node: %v", err)
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}
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// Add the node to the graph's database, this should also insert an
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// entry into the alias index for this node.
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if err := graph.AddLightningNode(testNode); err != nil {
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t.Fatalf("unable to add node: %v", err)
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}
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// Next, attempt to lookup the alias. The alias should exactly match
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// the one which the test node was assigned.
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dbAlias, err := graph.LookupAlias(testNode.PubKey)
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if err != nil {
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t.Fatalf("unable to find alias: %v", err)
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}
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if dbAlias != testNode.Alias {
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t.Fatalf("aliases don't match, expected %v got %v",
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testNode.Alias, dbAlias)
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}
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// Ensure that looking up a non-existent alias results in an error.
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node, err := createTestVertex(db)
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if err != nil {
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t.Fatalf("unable to create test node: %v", err)
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}
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_, err = graph.LookupAlias(node.PubKey)
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if err != ErrNodeAliasNotFound {
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t.Fatalf("alias lookup should fail for non-existent pubkey")
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}
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}
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func TestSourceNode(t *testing.T) {
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t.Parallel()
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db, cleanUp, err := makeTestDB()
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defer cleanUp()
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if err != nil {
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t.Fatalf("unable to make test database: %v", err)
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}
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graph := db.ChannelGraph()
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// We'd like to test the setting/getting of the source node, so we
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// first create a fake node to use within the test.
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testNode, err := createTestVertex(db)
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if err != nil {
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t.Fatalf("unable to create test node: %v", err)
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}
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// Attempt to fetch the source node, this should return an error as the
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// source node hasn't yet been set.
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if _, err := graph.SourceNode(); err != ErrSourceNodeNotSet {
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t.Fatalf("source node shouldn't be set in new graph")
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}
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// Set the source the source node, this should insert the node into the
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// database in a special way indicating it's the source node.
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if err := graph.SetSourceNode(testNode); err != nil {
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t.Fatalf("unable to set source node: %v", err)
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}
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// Retrieve the source node from the database, it should exactly match
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// the one we set above.
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sourceNode, err := graph.SourceNode()
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if err != nil {
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t.Fatalf("unable to fetch source node: %v", err)
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}
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if err := compareNodes(testNode, sourceNode); err != nil {
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t.Fatalf("nodes don't match: %v", err)
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}
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}
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func TestEdgeInsertionDeletion(t *testing.T) {
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t.Parallel()
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db, cleanUp, err := makeTestDB()
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defer cleanUp()
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if err != nil {
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t.Fatalf("unable to make test database: %v", err)
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}
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graph := db.ChannelGraph()
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// We'd like to test the insertion/deletion of edges, so we create two
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// vertexes to connect.
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node1, err := createTestVertex(db)
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if err != nil {
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t.Fatalf("unable to create test node: %v", err)
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}
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node2, err := createTestVertex(db)
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if err != nil {
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t.Fatalf("unable to create test node: %v", err)
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}
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// In in addition to the fake vertexes we create some fake channel
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// identifiers.
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chanID := uint64(prand.Int63())
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outpoint := wire.OutPoint{
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Hash: rev,
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Index: 9,
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}
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// Add the new edge to the database, this should proceed without any
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// errors.
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edgeInfo := ChannelEdgeInfo{
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ChannelID: chanID,
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ChainHash: key,
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NodeKey1: node1.PubKey,
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NodeKey2: node2.PubKey,
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BitcoinKey1: node1.PubKey,
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BitcoinKey2: node2.PubKey,
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AuthProof: &ChannelAuthProof{
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NodeSig1: testSig,
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NodeSig2: testSig,
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BitcoinSig1: testSig,
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BitcoinSig2: testSig,
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},
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ChannelPoint: outpoint,
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Capacity: 9000,
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}
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if err := graph.AddChannelEdge(&edgeInfo); err != nil {
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t.Fatalf("unable to create channel edge: %v", err)
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}
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// Next, attempt to delete the edge from the database, again this
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// should proceed without any issues.
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if err := graph.DeleteChannelEdge(&outpoint); err != nil {
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t.Fatalf("unable to delete edge: %v", err)
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}
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// Ensure that any query attempts to lookup the delete channel edge are
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// properly deleted.
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if _, _, _, err := graph.FetchChannelEdgesByOutpoint(&outpoint); err == nil {
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t.Fatalf("channel edge not deleted")
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}
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if _, _, _, err := graph.FetchChannelEdgesByID(chanID); err == nil {
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t.Fatalf("channel edge not deleted")
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}
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// Finally, attempt to delete a (now) non-existent edge within the
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// database, this should result in an error.
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err = graph.DeleteChannelEdge(&outpoint)
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if err != ErrEdgeNotFound {
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t.Fatalf("deleting a non-existent edge should fail!")
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}
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}
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// TestDisconnecteBlockAtHeight checks that the pruned state of the channel
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// database is what we expect after calling DisconnectBlockAtHeight.
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func TestDisconnecteBlockAtHeight(t *testing.T) {
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t.Parallel()
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db, cleanUp, err := makeTestDB()
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defer cleanUp()
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if err != nil {
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t.Fatalf("unable to make test database: %v", err)
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}
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graph := db.ChannelGraph()
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// We'd like to test the insertion/deletion of edges, so we create two
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// vertexes to connect.
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node1, err := createTestVertex(db)
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if err != nil {
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t.Fatalf("unable to create test node: %v", err)
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}
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node2, err := createTestVertex(db)
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if err != nil {
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t.Fatalf("unable to create test node: %v", err)
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}
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// In addition to the fake vertexes we create some fake channel
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// identifiers.
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var spendOutputs []*wire.OutPoint
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var blockHash chainhash.Hash
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copy(blockHash[:], bytes.Repeat([]byte{1}, 32))
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// Prune the graph a few times to make sure we have entries in the
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// prune log.
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_, err = graph.PruneGraph(spendOutputs, &blockHash, 155)
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if err != nil {
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t.Fatalf("unable to prune graph: %v", err)
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}
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var blockHash2 chainhash.Hash
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copy(blockHash2[:], bytes.Repeat([]byte{2}, 32))
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_, err = graph.PruneGraph(spendOutputs, &blockHash2, 156)
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if err != nil {
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t.Fatalf("unable to prune graph: %v", err)
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}
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// We'll create 3 almost identical edges, so first create a helper
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// method containing all logic for doing so.
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createEdge := func(height uint32, txIndex uint32, txPosition uint16,
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outPointIndex uint32) ChannelEdgeInfo {
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shortChanID := lnwire.ShortChannelID{
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BlockHeight: height,
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TxIndex: txIndex,
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TxPosition: txPosition,
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}
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outpoint := wire.OutPoint{
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Hash: rev,
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Index: outPointIndex,
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}
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edgeInfo := ChannelEdgeInfo{
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ChannelID: shortChanID.ToUint64(),
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ChainHash: key,
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NodeKey1: node1.PubKey,
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NodeKey2: node2.PubKey,
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BitcoinKey1: node1.PubKey,
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BitcoinKey2: node2.PubKey,
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AuthProof: &ChannelAuthProof{
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NodeSig1: testSig,
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NodeSig2: testSig,
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BitcoinSig1: testSig,
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BitcoinSig2: testSig,
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},
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ChannelPoint: outpoint,
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Capacity: 9000,
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}
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return edgeInfo
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}
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// Create an edge which has its block height at 156.
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height := uint32(156)
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edgeInfo := createEdge(height, 0, 0, 0)
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// Create an edge with block height 157. We give it
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// maximum values for tx index and position, to make
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// sure our database range scan get edges from the
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// entire range.
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edgeInfo2 := createEdge(height+1, math.MaxUint32&0x00ffffff,
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math.MaxUint16, 1)
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// Create a third edge, this with a block height of 155.
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edgeInfo3 := createEdge(height-1, 0, 0, 2)
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// Now add all these new edges to the database.
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if err := graph.AddChannelEdge(&edgeInfo); err != nil {
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t.Fatalf("unable to create channel edge: %v", err)
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}
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if err := graph.AddChannelEdge(&edgeInfo2); err != nil {
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t.Fatalf("unable to create channel edge: %v", err)
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}
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if err := graph.AddChannelEdge(&edgeInfo3); err != nil {
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t.Fatalf("unable to create channel edge: %v", err)
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}
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// Call DisconnectBlockAtHeight, which should prune every channel
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// that has an funding height of 'height' or greater.
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removed, err := graph.DisconnectBlockAtHeight(uint32(height))
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if err != nil {
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t.Fatalf("unable to prune %v", err)
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}
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// The two edges should have been removed.
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if len(removed) != 2 {
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t.Fatalf("expected two edges to be removed from graph, "+
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"only %d were", len(removed))
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}
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if removed[0].ChannelID != edgeInfo.ChannelID {
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t.Fatalf("expected edge to be removed from graph")
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}
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if removed[1].ChannelID != edgeInfo2.ChannelID {
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t.Fatalf("expected edge to be removed from graph")
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}
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// The two first edges should be removed from the db.
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_, _, has, err := graph.HasChannelEdge(edgeInfo.ChannelID)
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if err != nil {
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t.Fatalf("unable to query for edge: %v", err)
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}
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if has {
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t.Fatalf("edge1 was not pruned from the graph")
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}
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_, _, has, err = graph.HasChannelEdge(edgeInfo2.ChannelID)
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if err != nil {
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t.Fatalf("unable to query for edge: %v", err)
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}
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if has {
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t.Fatalf("edge2 was not pruned from the graph")
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}
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// Edge 3 should not be removed.
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_, _, has, err = graph.HasChannelEdge(edgeInfo3.ChannelID)
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if err != nil {
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t.Fatalf("unable to query for edge: %v", err)
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}
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if !has {
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t.Fatalf("edge3 was pruned from the graph")
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}
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// PruneTip should be set to the blockHash we specified for the block
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// at height 155.
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hash, h, err := graph.PruneTip()
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if err != nil {
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t.Fatalf("unable to get prune tip: %v", err)
|
|
}
|
|
if !blockHash.IsEqual(hash) {
|
|
t.Fatalf("expected best block to be %x, was %x", blockHash, hash)
|
|
}
|
|
if h != height-1 {
|
|
t.Fatalf("expected best block height to be %d, was %d", height-1, h)
|
|
}
|
|
}
|
|
|
|
func assertEdgeInfoEqual(t *testing.T, e1 *ChannelEdgeInfo,
|
|
e2 *ChannelEdgeInfo) {
|
|
|
|
if e1.ChannelID != e2.ChannelID {
|
|
t.Fatalf("chan id's don't match: %v vs %v", e1.ChannelID,
|
|
e2.ChannelID)
|
|
}
|
|
|
|
if e1.ChainHash != e2.ChainHash {
|
|
t.Fatalf("chain hashes don't match: %v vs %v", e1.ChainHash,
|
|
e2.ChainHash)
|
|
}
|
|
|
|
if !e1.NodeKey1.IsEqual(e2.NodeKey1) {
|
|
t.Fatalf("nodekey1 doesn't match")
|
|
}
|
|
if !e1.NodeKey2.IsEqual(e2.NodeKey2) {
|
|
t.Fatalf("nodekey2 doesn't match")
|
|
}
|
|
if !e1.BitcoinKey1.IsEqual(e2.BitcoinKey1) {
|
|
t.Fatalf("bitcoinkey1 doesn't match")
|
|
}
|
|
if !e1.BitcoinKey2.IsEqual(e2.BitcoinKey2) {
|
|
t.Fatalf("bitcoinkey2 doesn't match")
|
|
}
|
|
|
|
if !bytes.Equal(e1.Features, e2.Features) {
|
|
t.Fatalf("features doesn't match: %x vs %x", e1.Features,
|
|
e2.Features)
|
|
}
|
|
|
|
if !e1.AuthProof.NodeSig1.IsEqual(e2.AuthProof.NodeSig1) {
|
|
t.Fatalf("nodesig1 doesn't match: %v vs %v",
|
|
spew.Sdump(e1.AuthProof.NodeSig1),
|
|
spew.Sdump(e2.AuthProof.NodeSig1))
|
|
}
|
|
if !e1.AuthProof.NodeSig2.IsEqual(e2.AuthProof.NodeSig2) {
|
|
t.Fatalf("nodesig2 doesn't match")
|
|
}
|
|
if !e1.AuthProof.BitcoinSig1.IsEqual(e2.AuthProof.BitcoinSig1) {
|
|
t.Fatalf("bitcoinsig1 doesn't match")
|
|
}
|
|
if !e1.AuthProof.BitcoinSig2.IsEqual(e2.AuthProof.BitcoinSig2) {
|
|
t.Fatalf("bitcoinsig2 doesn't match")
|
|
}
|
|
|
|
if e1.ChannelPoint != e2.ChannelPoint {
|
|
t.Fatalf("channel point match: %v vs %v", e1.ChannelPoint,
|
|
e2.ChannelPoint)
|
|
}
|
|
|
|
if e1.Capacity != e2.Capacity {
|
|
t.Fatalf("capacity doesn't match: %v vs %v", e1.Capacity,
|
|
e2.Capacity)
|
|
}
|
|
}
|
|
|
|
func TestEdgeInfoUpdates(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
db, cleanUp, err := makeTestDB()
|
|
defer cleanUp()
|
|
if err != nil {
|
|
t.Fatalf("unable to make test database: %v", err)
|
|
}
|
|
|
|
graph := db.ChannelGraph()
|
|
|
|
// We'd like to test the update of edges inserted into the database, so
|
|
// we create two vertexes to connect.
|
|
node1, err := createTestVertex(db)
|
|
if err != nil {
|
|
t.Fatalf("unable to create test node: %v", err)
|
|
}
|
|
if err := graph.AddLightningNode(node1); err != nil {
|
|
t.Fatalf("unable to add node: %v", err)
|
|
}
|
|
node2, err := createTestVertex(db)
|
|
if err != nil {
|
|
t.Fatalf("unable to create test node: %v", err)
|
|
}
|
|
if err := graph.AddLightningNode(node2); err != nil {
|
|
t.Fatalf("unable to add node: %v", err)
|
|
}
|
|
|
|
var (
|
|
firstNode *LightningNode
|
|
secondNode *LightningNode
|
|
)
|
|
node1Bytes := node1.PubKey.SerializeCompressed()
|
|
node2Bytes := node2.PubKey.SerializeCompressed()
|
|
if bytes.Compare(node1Bytes, node2Bytes) == -1 {
|
|
firstNode = node1
|
|
secondNode = node2
|
|
} else {
|
|
firstNode = node2
|
|
secondNode = node1
|
|
}
|
|
|
|
// In in addition to the fake vertexes we create some fake channel
|
|
// identifiers.
|
|
chanID := uint64(prand.Int63())
|
|
outpoint := wire.OutPoint{
|
|
Hash: rev,
|
|
Index: 9,
|
|
}
|
|
|
|
// Add the new edge to the database, this should proceed without any
|
|
// errors.
|
|
edgeInfo := &ChannelEdgeInfo{
|
|
ChannelID: chanID,
|
|
ChainHash: key,
|
|
NodeKey1: firstNode.PubKey,
|
|
NodeKey2: secondNode.PubKey,
|
|
BitcoinKey1: firstNode.PubKey,
|
|
BitcoinKey2: secondNode.PubKey,
|
|
AuthProof: &ChannelAuthProof{
|
|
NodeSig1: testSig,
|
|
NodeSig2: testSig,
|
|
BitcoinSig1: testSig,
|
|
BitcoinSig2: testSig,
|
|
},
|
|
ChannelPoint: outpoint,
|
|
Capacity: 1000,
|
|
}
|
|
if err := graph.AddChannelEdge(edgeInfo); err != nil {
|
|
t.Fatalf("unable to create channel edge: %v", err)
|
|
}
|
|
|
|
// With the edge added, we can now create some fake edge information to
|
|
// update for both edges.
|
|
edge1 := &ChannelEdgePolicy{
|
|
Signature: testSig,
|
|
ChannelID: chanID,
|
|
LastUpdate: time.Unix(433453, 0),
|
|
Flags: 0,
|
|
TimeLockDelta: 99,
|
|
MinHTLC: 2342135,
|
|
FeeBaseMSat: 4352345,
|
|
FeeProportionalMillionths: 3452352,
|
|
Node: secondNode,
|
|
db: db,
|
|
}
|
|
edge2 := &ChannelEdgePolicy{
|
|
Signature: testSig,
|
|
ChannelID: chanID,
|
|
LastUpdate: time.Unix(124234, 0),
|
|
Flags: 1,
|
|
TimeLockDelta: 99,
|
|
MinHTLC: 2342135,
|
|
FeeBaseMSat: 4352345,
|
|
FeeProportionalMillionths: 90392423,
|
|
Node: firstNode,
|
|
db: db,
|
|
}
|
|
|
|
// Next, insert both nodes into the database, they should both be
|
|
// inserted without any issues.
|
|
if err := graph.UpdateEdgePolicy(edge1); err != nil {
|
|
t.Fatalf("unable to update edge: %v", err)
|
|
}
|
|
if err := graph.UpdateEdgePolicy(edge2); err != nil {
|
|
t.Fatalf("unable to update edge: %v", err)
|
|
}
|
|
|
|
// Check for existence of the edge within the database, it should be
|
|
// found.
|
|
_, _, found, err := graph.HasChannelEdge(chanID)
|
|
if err != nil {
|
|
t.Fatalf("unable to query for edge: %v", err)
|
|
} else if !found {
|
|
t.Fatalf("graph should have of inserted edge")
|
|
}
|
|
|
|
// We should also be able to retrieve the channelID only knowing the
|
|
// channel point of the channel.
|
|
dbChanID, err := graph.ChannelID(&outpoint)
|
|
if err != nil {
|
|
t.Fatalf("unable to retrieve channel ID: %v", err)
|
|
}
|
|
if dbChanID != chanID {
|
|
t.Fatalf("chan ID's mismatch, expected %v got %v", dbChanID,
|
|
chanID)
|
|
}
|
|
|
|
// With the edges inserted, perform some queries to ensure that they've
|
|
// been inserted properly.
|
|
dbEdgeInfo, dbEdge1, dbEdge2, err := graph.FetchChannelEdgesByID(chanID)
|
|
if err != nil {
|
|
t.Fatalf("unable to fetch channel by ID: %v", err)
|
|
}
|
|
if err := compareEdgePolicies(dbEdge1, edge1); err != nil {
|
|
t.Fatalf("edge doesn't match: %v", err)
|
|
}
|
|
if err := compareEdgePolicies(dbEdge2, edge2); err != nil {
|
|
t.Fatalf("edge doesn't match: %v", err)
|
|
}
|
|
assertEdgeInfoEqual(t, dbEdgeInfo, edgeInfo)
|
|
|
|
// Next, attempt to query the channel edges according to the outpoint
|
|
// of the channel.
|
|
dbEdgeInfo, dbEdge1, dbEdge2, err = graph.FetchChannelEdgesByOutpoint(&outpoint)
|
|
if err != nil {
|
|
t.Fatalf("unable to fetch channel by ID: %v", err)
|
|
}
|
|
if err := compareEdgePolicies(dbEdge1, edge1); err != nil {
|
|
t.Fatalf("edge doesn't match: %v", err)
|
|
}
|
|
if err := compareEdgePolicies(dbEdge2, edge2); err != nil {
|
|
t.Fatalf("edge doesn't match: %v", err)
|
|
}
|
|
assertEdgeInfoEqual(t, dbEdgeInfo, edgeInfo)
|
|
}
|
|
|
|
func randEdgePolicy(chanID uint64, op wire.OutPoint, db *DB) *ChannelEdgePolicy {
|
|
update := prand.Int63()
|
|
|
|
return &ChannelEdgePolicy{
|
|
ChannelID: chanID,
|
|
LastUpdate: time.Unix(update, 0),
|
|
TimeLockDelta: uint16(prand.Int63()),
|
|
MinHTLC: lnwire.MilliSatoshi(prand.Int63()),
|
|
FeeBaseMSat: lnwire.MilliSatoshi(prand.Int63()),
|
|
FeeProportionalMillionths: lnwire.MilliSatoshi(prand.Int63()),
|
|
db: db,
|
|
}
|
|
}
|
|
|
|
func TestGraphTraversal(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
db, cleanUp, err := makeTestDB()
|
|
defer cleanUp()
|
|
if err != nil {
|
|
t.Fatalf("unable to make test database: %v", err)
|
|
}
|
|
|
|
graph := db.ChannelGraph()
|
|
|
|
// We'd like to test some of the graph traversal capabilities within
|
|
// the DB, so we'll create a series of fake nodes to insert into the
|
|
// graph.
|
|
const numNodes = 20
|
|
nodes := make([]*LightningNode, numNodes)
|
|
nodeIndex := map[string]struct{}{}
|
|
for i := 0; i < numNodes; i++ {
|
|
node, err := createTestVertex(db)
|
|
if err != nil {
|
|
t.Fatalf("unable to create node: %v", err)
|
|
}
|
|
|
|
nodes[i] = node
|
|
nodeIndex[node.Alias] = struct{}{}
|
|
}
|
|
|
|
// Add each of the nodes into the graph, they should be inserted
|
|
// without error.
|
|
for _, node := range nodes {
|
|
if err := graph.AddLightningNode(node); err != nil {
|
|
t.Fatalf("unable to add node: %v", err)
|
|
}
|
|
}
|
|
|
|
// Iterate over each node as returned by the graph, if all nodes are
|
|
// reached, then the map created above should be empty.
|
|
err = graph.ForEachNode(nil, func(_ *bolt.Tx, node *LightningNode) error {
|
|
delete(nodeIndex, node.Alias)
|
|
return nil
|
|
})
|
|
if err != nil {
|
|
t.Fatalf("for each failure: %v", err)
|
|
}
|
|
if len(nodeIndex) != 0 {
|
|
t.Fatalf("all nodes not reached within ForEach")
|
|
}
|
|
|
|
// Determine which node is "smaller", we'll need this in order to
|
|
// properly create the edges for the graph.
|
|
var firstNode, secondNode *LightningNode
|
|
node1Bytes := nodes[0].PubKey.SerializeCompressed()
|
|
node2Bytes := nodes[1].PubKey.SerializeCompressed()
|
|
if bytes.Compare(node1Bytes, node2Bytes) == -1 {
|
|
firstNode = nodes[0]
|
|
secondNode = nodes[1]
|
|
} else {
|
|
firstNode = nodes[0]
|
|
secondNode = nodes[1]
|
|
}
|
|
|
|
// Create 5 channels between the first two nodes we generated above.
|
|
const numChannels = 5
|
|
chanIndex := map[uint64]struct{}{}
|
|
for i := 0; i < numChannels; i++ {
|
|
txHash := sha256.Sum256([]byte{byte(i)})
|
|
chanID := uint64(i + 1)
|
|
op := wire.OutPoint{
|
|
Hash: txHash,
|
|
Index: 0,
|
|
}
|
|
|
|
edgeInfo := ChannelEdgeInfo{
|
|
ChannelID: chanID,
|
|
ChainHash: key,
|
|
NodeKey1: nodes[0].PubKey,
|
|
NodeKey2: nodes[1].PubKey,
|
|
BitcoinKey1: nodes[0].PubKey,
|
|
BitcoinKey2: nodes[1].PubKey,
|
|
AuthProof: &ChannelAuthProof{
|
|
NodeSig1: testSig,
|
|
NodeSig2: testSig,
|
|
BitcoinSig1: testSig,
|
|
BitcoinSig2: testSig,
|
|
},
|
|
ChannelPoint: op,
|
|
Capacity: 1000,
|
|
}
|
|
err := graph.AddChannelEdge(&edgeInfo)
|
|
if err != nil {
|
|
t.Fatalf("unable to add node: %v", err)
|
|
}
|
|
|
|
// Create and add an edge with random data that points from
|
|
// node1 -> node2.
|
|
edge := randEdgePolicy(chanID, op, db)
|
|
edge.Flags = 0
|
|
edge.Node = secondNode
|
|
edge.Signature = testSig
|
|
if err := graph.UpdateEdgePolicy(edge); err != nil {
|
|
t.Fatalf("unable to update edge: %v", err)
|
|
}
|
|
|
|
// Create another random edge that points from node2 -> node1
|
|
// this time.
|
|
edge = randEdgePolicy(chanID, op, db)
|
|
edge.Flags = 1
|
|
edge.Node = firstNode
|
|
edge.Signature = testSig
|
|
if err := graph.UpdateEdgePolicy(edge); err != nil {
|
|
t.Fatalf("unable to update edge: %v", err)
|
|
}
|
|
|
|
chanIndex[chanID] = struct{}{}
|
|
}
|
|
|
|
// Iterate through all the known channels within the graph DB, once
|
|
// again if the map is empty that that indicates that all edges have
|
|
// properly been reached.
|
|
err = graph.ForEachChannel(func(ei *ChannelEdgeInfo, _ *ChannelEdgePolicy,
|
|
_ *ChannelEdgePolicy) error {
|
|
|
|
delete(chanIndex, ei.ChannelID)
|
|
return nil
|
|
})
|
|
if err != nil {
|
|
t.Fatalf("for each failure: %v", err)
|
|
}
|
|
if len(chanIndex) != 0 {
|
|
t.Fatalf("all edges not reached within ForEach")
|
|
}
|
|
|
|
// Finally, we want to test the ability to iterate over all the
|
|
// outgoing channels for a particular node.
|
|
numNodeChans := 0
|
|
err = firstNode.ForEachChannel(nil, func(_ *bolt.Tx, _ *ChannelEdgeInfo,
|
|
outEdge, inEdge *ChannelEdgePolicy) error {
|
|
|
|
// Each each should indicate that it's outgoing (pointed
|
|
// towards the second node).
|
|
if !outEdge.Node.PubKey.IsEqual(secondNode.PubKey) {
|
|
return fmt.Errorf("wrong outgoing edge")
|
|
}
|
|
|
|
// The incoming edge should also indicate that it's pointing to
|
|
// the origin node.
|
|
if !inEdge.Node.PubKey.IsEqual(firstNode.PubKey) {
|
|
return fmt.Errorf("wrong outgoing edge")
|
|
}
|
|
|
|
numNodeChans++
|
|
return nil
|
|
})
|
|
if err != nil {
|
|
t.Fatalf("for each failure: %v", err)
|
|
}
|
|
if numNodeChans != numChannels {
|
|
t.Fatalf("all edges for node not reached within ForEach: "+
|
|
"expected %v, got %v", numChannels, numNodeChans)
|
|
}
|
|
}
|
|
|
|
func assertPruneTip(t *testing.T, graph *ChannelGraph, blockHash *chainhash.Hash,
|
|
blockHeight uint32) {
|
|
|
|
pruneHash, pruneHeight, err := graph.PruneTip()
|
|
if err != nil {
|
|
_, _, line, _ := runtime.Caller(1)
|
|
t.Fatalf("line %v: unable to fetch prune tip: %v", line, err)
|
|
}
|
|
if !bytes.Equal(blockHash[:], pruneHash[:]) {
|
|
_, _, line, _ := runtime.Caller(1)
|
|
t.Fatalf("line: %v, prune tips don't match, expected %x got %x",
|
|
line, blockHash, pruneHash)
|
|
}
|
|
if pruneHeight != blockHeight {
|
|
_, _, line, _ := runtime.Caller(1)
|
|
t.Fatalf("line %v: prune heights don't match, expected %v "+
|
|
"got %v", line, blockHeight, pruneHeight)
|
|
}
|
|
}
|
|
|
|
func asserNumChans(t *testing.T, graph *ChannelGraph, n int) {
|
|
numChans := 0
|
|
if err := graph.ForEachChannel(func(*ChannelEdgeInfo, *ChannelEdgePolicy,
|
|
*ChannelEdgePolicy) error {
|
|
|
|
numChans++
|
|
return nil
|
|
}); err != nil {
|
|
_, _, line, _ := runtime.Caller(1)
|
|
t.Fatalf("line %v:unable to scan channels: %v", line, err)
|
|
}
|
|
if numChans != n {
|
|
_, _, line, _ := runtime.Caller(1)
|
|
t.Fatalf("line %v: expected %v chans instead have %v", line,
|
|
n, numChans)
|
|
}
|
|
}
|
|
|
|
func assertChanViewEqual(t *testing.T, a []wire.OutPoint, b []*wire.OutPoint) {
|
|
if len(a) != len(b) {
|
|
_, _, line, _ := runtime.Caller(1)
|
|
t.Fatalf("line %v: chan views dont match", line)
|
|
}
|
|
|
|
chanViewSet := make(map[wire.OutPoint]struct{})
|
|
for _, op := range a {
|
|
chanViewSet[op] = struct{}{}
|
|
}
|
|
|
|
for _, op := range b {
|
|
if _, ok := chanViewSet[*op]; !ok {
|
|
_, _, line, _ := runtime.Caller(1)
|
|
t.Fatalf("line %v: chanPoint(%v) not found in first view",
|
|
line, op)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestGraphPruning(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
db, cleanUp, err := makeTestDB()
|
|
defer cleanUp()
|
|
if err != nil {
|
|
t.Fatalf("unable to make test database: %v", err)
|
|
}
|
|
|
|
graph := db.ChannelGraph()
|
|
|
|
// As initial set up for the test, we'll create a graph with 5 vertexes
|
|
// and enough edges to create a fully connected graph. The graph will
|
|
// be rather simple, representing a straight line.
|
|
const numNodes = 5
|
|
graphNodes := make([]*LightningNode, numNodes)
|
|
for i := 0; i < numNodes; i++ {
|
|
node, err := createTestVertex(db)
|
|
if err != nil {
|
|
t.Fatalf("unable to create node: %v", err)
|
|
}
|
|
|
|
if err := graph.AddLightningNode(node); err != nil {
|
|
t.Fatalf("unable to add node: %v", err)
|
|
}
|
|
|
|
graphNodes[i] = node
|
|
}
|
|
|
|
// With the vertexes created, we'll next create a series of channels
|
|
// between them.
|
|
channelPoints := make([]*wire.OutPoint, 0, numNodes-1)
|
|
for i := 0; i < numNodes-1; i++ {
|
|
txHash := sha256.Sum256([]byte{byte(i)})
|
|
chanID := uint64(i + 1)
|
|
op := wire.OutPoint{
|
|
Hash: txHash,
|
|
Index: 0,
|
|
}
|
|
|
|
channelPoints = append(channelPoints, &op)
|
|
|
|
edgeInfo := ChannelEdgeInfo{
|
|
ChannelID: chanID,
|
|
ChainHash: key,
|
|
NodeKey1: graphNodes[i].PubKey,
|
|
NodeKey2: graphNodes[i+1].PubKey,
|
|
BitcoinKey1: graphNodes[i].PubKey,
|
|
BitcoinKey2: graphNodes[i+1].PubKey,
|
|
AuthProof: &ChannelAuthProof{
|
|
NodeSig1: testSig,
|
|
NodeSig2: testSig,
|
|
BitcoinSig1: testSig,
|
|
BitcoinSig2: testSig,
|
|
},
|
|
ChannelPoint: op,
|
|
Capacity: 1000,
|
|
}
|
|
|
|
if err := graph.AddChannelEdge(&edgeInfo); err != nil {
|
|
t.Fatalf("unable to add node: %v", err)
|
|
}
|
|
|
|
// Create and add an edge with random data that points from
|
|
// node_i -> node_i+1
|
|
edge := randEdgePolicy(chanID, op, db)
|
|
edge.Flags = 0
|
|
edge.Node = graphNodes[i]
|
|
edge.Signature = testSig
|
|
if err := graph.UpdateEdgePolicy(edge); err != nil {
|
|
t.Fatalf("unable to update edge: %v", err)
|
|
}
|
|
|
|
// Create another random edge that points from node_i+1 ->
|
|
// node_i this time.
|
|
edge = randEdgePolicy(chanID, op, db)
|
|
edge.Flags = 1
|
|
edge.Node = graphNodes[i]
|
|
edge.Signature = testSig
|
|
if err := graph.UpdateEdgePolicy(edge); err != nil {
|
|
t.Fatalf("unable to update edge: %v", err)
|
|
}
|
|
}
|
|
|
|
// With all the channel points added, we'll consult the graph to ensure
|
|
// it has the same channel view as the one we just constructed.
|
|
channelView, err := graph.ChannelView()
|
|
if err != nil {
|
|
t.Fatalf("unable to get graph channel view: %v", err)
|
|
}
|
|
assertChanViewEqual(t, channelView, channelPoints)
|
|
|
|
// Now with our test graph created, we can test the pruning
|
|
// capabilities of the channel graph.
|
|
|
|
// First we create a mock block that ends up closing the first two
|
|
// channels.
|
|
var blockHash chainhash.Hash
|
|
copy(blockHash[:], bytes.Repeat([]byte{1}, 32))
|
|
blockHeight := uint32(1)
|
|
block := channelPoints[:2]
|
|
prunedChans, err := graph.PruneGraph(block, &blockHash, blockHeight)
|
|
if err != nil {
|
|
t.Fatalf("unable to prune graph: %v", err)
|
|
}
|
|
if len(prunedChans) != 2 {
|
|
t.Fatalf("incorrect number of channels pruned: expected %v, got %v",
|
|
2, prunedChans)
|
|
}
|
|
|
|
// Now ensure that the prune tip has been updated.
|
|
assertPruneTip(t, graph, &blockHash, blockHeight)
|
|
|
|
// Count up the number of channels known within the graph, only 2
|
|
// should be remaining.
|
|
asserNumChans(t, graph, 2)
|
|
|
|
// Those channels should also be missing from the channel view.
|
|
channelView, err = graph.ChannelView()
|
|
if err != nil {
|
|
t.Fatalf("unable to get graph channel view: %v", err)
|
|
}
|
|
assertChanViewEqual(t, channelView, channelPoints[2:])
|
|
|
|
// Next we'll create a block that doesn't close any channels within the
|
|
// graph to test the negative error case.
|
|
fakeHash := sha256.Sum256([]byte("test prune"))
|
|
nonChannel := &wire.OutPoint{
|
|
Hash: fakeHash,
|
|
Index: 9,
|
|
}
|
|
blockHash = sha256.Sum256(blockHash[:])
|
|
blockHeight = 2
|
|
prunedChans, err = graph.PruneGraph([]*wire.OutPoint{nonChannel},
|
|
&blockHash, blockHeight)
|
|
if err != nil {
|
|
t.Fatalf("unable to prune graph: %v", err)
|
|
}
|
|
|
|
// No channels should've been detected as pruned.
|
|
if len(prunedChans) != 0 {
|
|
t.Fatalf("channels were pruned but shouldn't have been")
|
|
}
|
|
|
|
// Once again, the prune tip should've been updated.
|
|
assertPruneTip(t, graph, &blockHash, blockHeight)
|
|
asserNumChans(t, graph, 2)
|
|
|
|
// Finally, create a block that prunes the remainder of the channels
|
|
// from the graph.
|
|
blockHash = sha256.Sum256(blockHash[:])
|
|
blockHeight = 3
|
|
prunedChans, err = graph.PruneGraph(channelPoints[2:], &blockHash,
|
|
blockHeight)
|
|
if err != nil {
|
|
t.Fatalf("unable to prune graph: %v", err)
|
|
}
|
|
|
|
// The remainder of the channels should've been pruned from the graph.
|
|
if len(prunedChans) != 2 {
|
|
t.Fatalf("incorrect number of channels pruned: expected %v, got %v",
|
|
2, len(prunedChans))
|
|
}
|
|
|
|
// The prune tip should be updated, and no channels should be found
|
|
// within the current graph.
|
|
assertPruneTip(t, graph, &blockHash, blockHeight)
|
|
asserNumChans(t, graph, 0)
|
|
|
|
// Finally, the channel view at this point in the graph should now be
|
|
// completely empty.
|
|
// Those channels should also be missing from the channel view.
|
|
channelView, err = graph.ChannelView()
|
|
if err != nil {
|
|
t.Fatalf("unable to get graph channel view: %v", err)
|
|
}
|
|
if len(channelView) != 0 {
|
|
t.Fatalf("channel view should be empty, instead have: %v",
|
|
channelView)
|
|
}
|
|
}
|
|
|
|
// compareNodes is used to compare two LightningNodes while excluding the
|
|
// Features struct, which cannot be compared as the semantics for reserializing
|
|
// the featuresMap have not been defined.
|
|
func compareNodes(a, b *LightningNode) error {
|
|
if !reflect.DeepEqual(a.LastUpdate, b.LastUpdate) {
|
|
return fmt.Errorf("LastUpdate doesn't match: expected %#v, \n"+
|
|
"got %#v", a.LastUpdate, b.LastUpdate)
|
|
}
|
|
if !reflect.DeepEqual(a.Addresses, b.Addresses) {
|
|
return fmt.Errorf("Addresses doesn't match: expected %#v, \n "+
|
|
"got %#v", a.Addresses, b.Addresses)
|
|
}
|
|
if !reflect.DeepEqual(a.PubKey, b.PubKey) {
|
|
return fmt.Errorf("PubKey doesn't match: expected %#v, \n "+
|
|
"got %#v", a.PubKey, b.PubKey)
|
|
}
|
|
if !reflect.DeepEqual(a.Color, b.Color) {
|
|
return fmt.Errorf("Color doesn't match: expected %#v, \n "+
|
|
"got %#v", a.Color, b.Color)
|
|
}
|
|
if !reflect.DeepEqual(a.Alias, b.Alias) {
|
|
return fmt.Errorf("Alias doesn't match: expected %#v, \n "+
|
|
"got %#v", a.Alias, b.Alias)
|
|
}
|
|
if !reflect.DeepEqual(a.db, b.db) {
|
|
return fmt.Errorf("db doesn't match: expected %#v, \n "+
|
|
"got %#v", a.db, b.db)
|
|
}
|
|
if !reflect.DeepEqual(a.HaveNodeAnnouncement, b.HaveNodeAnnouncement) {
|
|
return fmt.Errorf("HaveNodeAnnouncement doesn't match: expected %#v, \n "+
|
|
"got %#v", a.HaveNodeAnnouncement, b.HaveNodeAnnouncement)
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
// compareEdgePolicies is used to compare two ChannelEdgePolices using
|
|
// compareNodes, so as to exclude comparisons of the Nodes' Features struct.
|
|
func compareEdgePolicies(a, b *ChannelEdgePolicy) error {
|
|
if a.ChannelID != b.ChannelID {
|
|
return fmt.Errorf("ChannelID doesn't match: expected %v, "+
|
|
"got %v", a.ChannelID, b.ChannelID)
|
|
}
|
|
if !reflect.DeepEqual(a.LastUpdate, b.LastUpdate) {
|
|
return fmt.Errorf("LastUpdate doesn't match: expected %#v, \n "+
|
|
"got %#v", a.LastUpdate, b.LastUpdate)
|
|
}
|
|
if a.Flags != b.Flags {
|
|
return fmt.Errorf("Flags doesn't match: expected %v, "+
|
|
"got %v", a.Flags, b.Flags)
|
|
}
|
|
if a.TimeLockDelta != b.TimeLockDelta {
|
|
return fmt.Errorf("TimeLockDelta doesn't match: expected %v, "+
|
|
"got %v", a.TimeLockDelta, b.TimeLockDelta)
|
|
}
|
|
if a.MinHTLC != b.MinHTLC {
|
|
return fmt.Errorf("MinHTLC doesn't match: expected %v, "+
|
|
"got %v", a.MinHTLC, b.MinHTLC)
|
|
}
|
|
if a.FeeBaseMSat != b.FeeBaseMSat {
|
|
return fmt.Errorf("FeeBaseMSat doesn't match: expected %v, "+
|
|
"got %v", a.FeeBaseMSat, b.FeeBaseMSat)
|
|
}
|
|
if a.FeeProportionalMillionths != b.FeeProportionalMillionths {
|
|
return fmt.Errorf("FeeProportionalMillionths doesn't match: "+
|
|
"expected %v, got %v", a.FeeProportionalMillionths,
|
|
b.FeeProportionalMillionths)
|
|
}
|
|
if err := compareNodes(a.Node, b.Node); err != nil {
|
|
return err
|
|
}
|
|
if !reflect.DeepEqual(a.db, b.db) {
|
|
return fmt.Errorf("db doesn't match: expected %#v, \n "+
|
|
"got %#v", a.db, b.db)
|
|
}
|
|
return nil
|
|
}
|