mirror of
https://github.com/lightningnetwork/lnd.git
synced 2024-11-19 01:43:16 +01:00
server: move establishment of persistent connections to Start()
This commit is contained in:
Olaoluwa Osuntokun
parent
7fe02c7bf6
commit
fe3c90362e
257
server.go
257
server.go
@ -187,22 +187,20 @@ func newServer(listenAddrs []string, notifier chainntnfs.ChainNotifier,
|
||||
|
||||
chanGraph := chanDB.ChannelGraph()
|
||||
|
||||
// In order to have ability to announce the self node we need to
|
||||
// sign the node announce message, and include the signature in the
|
||||
// node channeldb object.
|
||||
// TODO(roasbeef): make alias configurable
|
||||
alias := lnwire.NewAlias(hex.EncodeToString(serializedPubKey[:10]))
|
||||
self := &channeldb.LightningNode{
|
||||
LastUpdate: time.Now(),
|
||||
Addresses: selfAddrs,
|
||||
PubKey: privKey.PubKey(),
|
||||
// TODO(roasbeef): make alias configurable
|
||||
Alias: alias.String(),
|
||||
Features: globalFeatures,
|
||||
Alias: alias.String(),
|
||||
Features: globalFeatures,
|
||||
}
|
||||
|
||||
// Initialize graph with authenticated lightning node. We need to
|
||||
// generate a valid signature in order for other nodes on the network
|
||||
// to accept our announcement.
|
||||
// If our information has changed since our last boot, then we'll
|
||||
// re-sign our node announcement so a fresh authenticated version of it
|
||||
// can be propagated throughout the network upon startup.
|
||||
// TODO(roasbeef): don't always set timestamp above to _now.
|
||||
self.AuthSig, err = discovery.SignAnnouncement(s.nodeSigner,
|
||||
s.identityPriv.PubKey(),
|
||||
&lnwire.NodeAnnouncement{
|
||||
@ -217,7 +215,6 @@ func newServer(listenAddrs []string, notifier chainntnfs.ChainNotifier,
|
||||
return nil, fmt.Errorf("unable to generate signature for "+
|
||||
"self node announcement: %v", err)
|
||||
}
|
||||
|
||||
if err := chanGraph.SetSourceNode(self); err != nil {
|
||||
return nil, fmt.Errorf("can't set self node: %v", err)
|
||||
}
|
||||
@ -322,116 +319,6 @@ func newServer(listenAddrs []string, notifier chainntnfs.ChainNotifier,
|
||||
}
|
||||
s.connMgr = cmgr
|
||||
|
||||
// In order to promote liveness of our active channels, instruct the
|
||||
// connection manager to attempt to establish and maintain persistent
|
||||
// connections to all our direct channel counterparties.
|
||||
|
||||
// nodeAddrsMap stores the combination of node public keys and
|
||||
// addresses that we'll attempt to reconnect to. PubKey strings are
|
||||
// used as keys since other PubKey forms can't be compared.
|
||||
nodeAddrsMap := map[string]*nodeAddresses{}
|
||||
|
||||
// Iterate through the list of LinkNodes to find addresses we should
|
||||
// attempt to connect to based on our set of previous connections. Set
|
||||
// the reconnection port to the default peer port.
|
||||
linkNodes, err := s.chanDB.FetchAllLinkNodes()
|
||||
if err != nil && err != channeldb.ErrLinkNodesNotFound {
|
||||
return nil, err
|
||||
}
|
||||
for _, node := range linkNodes {
|
||||
for _, address := range node.Addresses {
|
||||
if address.Port == 0 {
|
||||
address.Port = defaultPeerPort
|
||||
}
|
||||
}
|
||||
pubStr := string(node.IdentityPub.SerializeCompressed())
|
||||
nodeAddrs := &nodeAddresses{
|
||||
pubKey: node.IdentityPub,
|
||||
addresses: node.Addresses,
|
||||
}
|
||||
nodeAddrsMap[pubStr] = nodeAddrs
|
||||
}
|
||||
|
||||
// After checking our previous connections for addresses to connect to,
|
||||
// iterate through the nodes in our channel graph to find addresses
|
||||
// that have been added via NodeAnnouncement messages.
|
||||
sourceNode, err := chanGraph.SourceNode()
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
err = sourceNode.ForEachChannel(nil, func(_ *bolt.Tx,
|
||||
_ *channeldb.ChannelEdgeInfo, policy *channeldb.ChannelEdgePolicy) error {
|
||||
|
||||
pubStr := string(policy.Node.PubKey.SerializeCompressed())
|
||||
|
||||
// Add addresses from channel graph/NodeAnnouncements to the
|
||||
// list of addresses we'll connect to. If there are duplicates
|
||||
// that have different ports specified, the port from the
|
||||
// channel graph should supersede the port from the link node.
|
||||
var addrs []*net.TCPAddr
|
||||
linkNodeAddrs, ok := nodeAddrsMap[pubStr]
|
||||
if ok {
|
||||
for _, lnAddress := range linkNodeAddrs.addresses {
|
||||
var addrMatched bool
|
||||
for _, polAddress := range policy.Node.Addresses {
|
||||
polTCPAddr, ok := polAddress.(*net.TCPAddr)
|
||||
if ok && polTCPAddr.IP.Equal(lnAddress.IP) {
|
||||
addrMatched = true
|
||||
addrs = append(addrs, polTCPAddr)
|
||||
}
|
||||
}
|
||||
if !addrMatched {
|
||||
addrs = append(addrs, lnAddress)
|
||||
}
|
||||
}
|
||||
} else {
|
||||
for _, addr := range policy.Node.Addresses {
|
||||
polTCPAddr, ok := addr.(*net.TCPAddr)
|
||||
if ok {
|
||||
addrs = append(addrs, polTCPAddr)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
nodeAddrsMap[pubStr] = &nodeAddresses{
|
||||
pubKey: policy.Node.PubKey,
|
||||
addresses: addrs,
|
||||
}
|
||||
|
||||
return nil
|
||||
})
|
||||
if err != nil && err != channeldb.ErrGraphNoEdgesFound {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
// Iterate through the combined list of addresses from prior links and
|
||||
// node announcements and attempt to reconnect to each node.
|
||||
for pubStr, nodeAddr := range nodeAddrsMap {
|
||||
for _, address := range nodeAddr.addresses {
|
||||
// Create a wrapper address which couples the IP and
|
||||
// the pubkey so the brontide authenticated connection
|
||||
// can be established.
|
||||
lnAddr := &lnwire.NetAddress{
|
||||
IdentityKey: nodeAddr.pubKey,
|
||||
Address: address,
|
||||
}
|
||||
srvrLog.Debugf("Attempting persistent connection to "+
|
||||
"channel peer %v", lnAddr)
|
||||
|
||||
// Send the persistent connection request to the
|
||||
// connection manager, saving the request itself so we
|
||||
// can cancel/restart the process as needed.
|
||||
connReq := &connmgr.ConnReq{
|
||||
Addr: lnAddr,
|
||||
Permanent: true,
|
||||
}
|
||||
|
||||
s.persistentConnReqs[pubStr] = append(s.persistentConnReqs[pubStr],
|
||||
connReq)
|
||||
go s.connMgr.Connect(connReq)
|
||||
}
|
||||
}
|
||||
|
||||
return s, nil
|
||||
}
|
||||
|
||||
@ -477,6 +364,13 @@ func (s *server) Start() error {
|
||||
s.wg.Add(1)
|
||||
go s.queryHandler()
|
||||
|
||||
// With all the relevant sub-systems started, we'll now atetmpt to
|
||||
// stasblish persistent connections to our direct channel collaborators
|
||||
// within the network.
|
||||
if err := s.establishPersistentConnections(); err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
@ -507,6 +401,129 @@ func (s *server) Stop() error {
|
||||
return nil
|
||||
}
|
||||
|
||||
// establishPersistentConnections attempts to establish persistent connections
|
||||
// to all our direct channel collaborators. In order to promote liveness of
|
||||
// our active channels, we instruct the connection manager to attempt to
|
||||
// establish and maintain persistent connections to all our direct channel
|
||||
// counterparties.
|
||||
func (s *server) establishPersistentConnections() error {
|
||||
// nodeAddrsMap stores the combination of node public keys and
|
||||
// addresses that we'll attempt to reconnect to. PubKey strings are
|
||||
// used as keys since other PubKey forms can't be compared.
|
||||
nodeAddrsMap := map[string]*nodeAddresses{}
|
||||
|
||||
// Iterate through the list of LinkNodes to find addresses we should
|
||||
// attempt to connect to based on our set of previous connections. Set
|
||||
// the reconnection port to the default peer port.
|
||||
linkNodes, err := s.chanDB.FetchAllLinkNodes()
|
||||
if err != nil && err != channeldb.ErrLinkNodesNotFound {
|
||||
return err
|
||||
}
|
||||
for _, node := range linkNodes {
|
||||
for _, address := range node.Addresses {
|
||||
if address.Port == 0 {
|
||||
address.Port = defaultPeerPort
|
||||
}
|
||||
}
|
||||
pubStr := string(node.IdentityPub.SerializeCompressed())
|
||||
nodeAddrs := &nodeAddresses{
|
||||
pubKey: node.IdentityPub,
|
||||
addresses: node.Addresses,
|
||||
}
|
||||
nodeAddrsMap[pubStr] = nodeAddrs
|
||||
}
|
||||
|
||||
// After checking our previous connections for addresses to connect to,
|
||||
// iterate through the nodes in our channel graph to find addresses
|
||||
// that have been added via NodeAnnouncement messages.
|
||||
chanGraph := s.chanDB.ChannelGraph()
|
||||
sourceNode, err := chanGraph.SourceNode()
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
err = sourceNode.ForEachChannel(nil, func(_ *bolt.Tx,
|
||||
_ *channeldb.ChannelEdgeInfo, policy *channeldb.ChannelEdgePolicy) error {
|
||||
|
||||
pubStr := string(policy.Node.PubKey.SerializeCompressed())
|
||||
|
||||
// Add addresses from channel graph/NodeAnnouncements to the
|
||||
// list of addresses we'll connect to. If there are duplicates
|
||||
// that have different ports specified, the port from the
|
||||
// channel graph should supersede the port from the link node.
|
||||
var addrs []*net.TCPAddr
|
||||
linkNodeAddrs, ok := nodeAddrsMap[pubStr]
|
||||
if ok {
|
||||
for _, lnAddress := range linkNodeAddrs.addresses {
|
||||
var addrMatched bool
|
||||
for _, polAddress := range policy.Node.Addresses {
|
||||
polTCPAddr, ok := polAddress.(*net.TCPAddr)
|
||||
if ok && polTCPAddr.IP.Equal(lnAddress.IP) {
|
||||
addrMatched = true
|
||||
addrs = append(addrs, polTCPAddr)
|
||||
}
|
||||
}
|
||||
if !addrMatched {
|
||||
addrs = append(addrs, lnAddress)
|
||||
}
|
||||
}
|
||||
} else {
|
||||
for _, addr := range policy.Node.Addresses {
|
||||
polTCPAddr, ok := addr.(*net.TCPAddr)
|
||||
if ok {
|
||||
addrs = append(addrs, polTCPAddr)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
nodeAddrsMap[pubStr] = &nodeAddresses{
|
||||
pubKey: policy.Node.PubKey,
|
||||
addresses: addrs,
|
||||
}
|
||||
|
||||
return nil
|
||||
})
|
||||
if err != nil && err != channeldb.ErrGraphNoEdgesFound {
|
||||
return err
|
||||
}
|
||||
|
||||
// Iterate through the combined list of addresses from prior links and
|
||||
// node announcements and attempt to reconnect to each node.
|
||||
for pubStr, nodeAddr := range nodeAddrsMap {
|
||||
// Add this peer to the set of peers we should maintain a
|
||||
// persistent connection with.
|
||||
s.persistentPeers[pubStr] = struct{}{}
|
||||
|
||||
for _, address := range nodeAddr.addresses {
|
||||
// Create a wrapper address which couples the IP and
|
||||
// the pubkey so the brontide authenticated connection
|
||||
// can be established.
|
||||
lnAddr := &lnwire.NetAddress{
|
||||
IdentityKey: nodeAddr.pubKey,
|
||||
Address: address,
|
||||
}
|
||||
srvrLog.Debugf("Attempting persistent connection to "+
|
||||
"channel peer %v", lnAddr)
|
||||
|
||||
// Send the persistent connection request to the
|
||||
// connection manager, saving the request itself so we
|
||||
// can cancel/restart the process as needed.
|
||||
connReq := &connmgr.ConnReq{
|
||||
Addr: lnAddr,
|
||||
Permanent: true,
|
||||
}
|
||||
|
||||
s.pendingConnMtx.Lock()
|
||||
s.persistentConnReqs[pubStr] = append(s.persistentConnReqs[pubStr],
|
||||
connReq)
|
||||
s.pendingConnMtx.Unlock()
|
||||
|
||||
go s.connMgr.Connect(connReq)
|
||||
}
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// WaitForShutdown blocks all goroutines have been stopped.
|
||||
func (s *server) WaitForShutdown() {
|
||||
s.wg.Wait()
|
||||
|
||||
Loading…
Reference in New Issue
Block a user