mirror of
https://github.com/cwinfo/yggdrasil-go.git
synced 2024-11-22 08:20:28 +00:00
work-in-progress on more cleanup
This commit is contained in:
Arceliar
parent
59c5644a52
commit
ef1e506a0c
@ -257,14 +257,14 @@ func (c *Core) ConnDialer() (*Dialer, error) {
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// "Listen" configuration item, e.g.
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// tcp://a.b.c.d:e
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func (c *Core) ListenTCP(uri string) (*TcpListener, error) {
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return c.link.tcp.listen(uri, nil)
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return c.links.tcp.listen(uri, nil)
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}
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// ListenTLS starts a new TLS listener. The input URI should match that of the
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// "Listen" configuration item, e.g.
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// tls://a.b.c.d:e
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func (c *Core) ListenTLS(uri string) (*TcpListener, error) {
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return c.link.tcp.listen(uri, c.link.tcp.tls.forListener)
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return c.links.tcp.listen(uri, c.links.tcp.tls.forListener)
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}
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// NodeID gets the node ID. This is derived from your router encryption keys.
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@ -463,7 +463,7 @@ func (c *Core) RemovePeer(addr string, sintf string) error {
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// This does not add the peer to the peer list, so if the connection drops, the
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// peer will not be called again automatically.
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func (c *Core) CallPeer(addr string, sintf string) error {
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return c.link.call(addr, sintf)
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return c.links.call(addr, sintf)
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}
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// DisconnectPeer disconnects a peer once. This should be specified as a port
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@ -29,7 +29,7 @@ type Core struct {
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switchTable switchTable
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peers peers
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router router
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link link
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links links
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log *log.Logger
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addPeerTimer *time.Timer
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}
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@ -165,7 +165,7 @@ func (c *Core) _start(nc *config.NodeConfig, log *log.Logger) (*config.NodeState
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return nil, err
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}
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if err := c.link.init(c); err != nil {
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if err := c.links.init(c); err != nil {
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c.log.Errorln("Failed to start link interfaces")
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return nil, err
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}
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@ -197,7 +197,7 @@ func (c *Core) _stop() {
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if c.addPeerTimer != nil {
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c.addPeerTimer.Stop()
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}
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c.link.stop()
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c.links.stop()
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/* FIXME this deadlocks, need a waitgroup or something to coordinate shutdown
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for _, peer := range c.GetPeers() {
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c.DisconnectPeer(peer.Port)
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@ -20,7 +20,7 @@ import (
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"github.com/Arceliar/phony"
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)
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type link struct {
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type links struct {
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core *Core
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mutex sync.RWMutex // protects interfaces below
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interfaces map[linkInfo]*linkInterface
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@ -37,7 +37,7 @@ type linkInfo struct {
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remote string // Remote name or address
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}
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type linkInterfaceMsgIO interface {
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type linkMsgIO interface {
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readMsg() ([]byte, error)
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writeMsgs([][]byte) (int, error)
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close() error
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@ -48,9 +48,9 @@ type linkInterfaceMsgIO interface {
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type linkInterface struct {
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lname string
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link *link
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links *links
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peer *peer
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msgIO linkInterfaceMsgIO
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msgIO linkMsgIO
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info linkInfo
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incoming bool
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force bool
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@ -66,7 +66,7 @@ type linkInterface struct {
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blocked bool // True if we've blocked the peer in the switch
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}
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func (l *link) init(c *Core) error {
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func (l *links) init(c *Core) error {
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l.core = c
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l.mutex.Lock()
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l.interfaces = make(map[linkInfo]*linkInterface)
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@ -81,11 +81,11 @@ func (l *link) init(c *Core) error {
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return nil
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}
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func (l *link) reconfigure() {
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func (l *links) reconfigure() {
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l.tcp.reconfigure()
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}
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func (l *link) call(uri string, sintf string) error {
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func (l *links) call(uri string, sintf string) error {
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u, err := url.Parse(uri)
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if err != nil {
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return fmt.Errorf("peer %s is not correctly formatted (%s)", uri, err)
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@ -104,7 +104,7 @@ func (l *link) call(uri string, sintf string) error {
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return nil
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}
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func (l *link) listen(uri string) error {
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func (l *links) listen(uri string) error {
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u, err := url.Parse(uri)
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if err != nil {
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return fmt.Errorf("listener %s is not correctly formatted (%s)", uri, err)
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@ -121,11 +121,11 @@ func (l *link) listen(uri string) error {
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}
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}
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func (l *link) create(msgIO linkInterfaceMsgIO, name, linkType, local, remote string, incoming, force bool) (*linkInterface, error) {
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func (l *links) create(msgIO linkMsgIO, name, linkType, local, remote string, incoming, force bool) (*linkInterface, error) {
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// Technically anything unique would work for names, but let's pick something human readable, just for debugging
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intf := linkInterface{
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lname: name,
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link: l,
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links: l,
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msgIO: msgIO,
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info: linkInfo{
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linkType: linkType,
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@ -142,7 +142,7 @@ func (l *link) create(msgIO linkInterfaceMsgIO, name, linkType, local, remote st
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return &intf, nil
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}
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func (l *link) stop() error {
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func (l *links) stop() error {
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close(l.stopped)
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if err := l.tcp.stop(); err != nil {
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return err
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@ -163,8 +163,8 @@ func (intf *linkInterface) handler() error {
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})
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myLinkPub, myLinkPriv := crypto.NewBoxKeys()
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meta := version_getBaseMetadata()
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meta.box = intf.link.core.boxPub
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meta.sig = intf.link.core.sigPub
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meta.box = intf.links.core.boxPub
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meta.sig = intf.links.core.sigPub
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meta.link = *myLinkPub
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metaBytes := meta.encode()
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// TODO timeouts on send/recv (goroutine for send/recv, channel select w/ timer)
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@ -187,12 +187,12 @@ func (intf *linkInterface) handler() error {
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}
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base := version_getBaseMetadata()
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if meta.ver > base.ver || meta.ver == base.ver && meta.minorVer > base.minorVer {
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intf.link.core.log.Errorln("Failed to connect to node: " + intf.lname + " version: " + fmt.Sprintf("%d.%d", meta.ver, meta.minorVer))
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intf.links.core.log.Errorln("Failed to connect to node: " + intf.lname + " version: " + fmt.Sprintf("%d.%d", meta.ver, meta.minorVer))
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return errors.New("failed to connect: wrong version")
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}
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// Check if we're authorized to connect to this key / IP
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if intf.incoming && !intf.force && !intf.link.core.peers.isAllowedEncryptionPublicKey(&meta.box) {
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intf.link.core.log.Warnf("%s connection from %s forbidden: AllowedEncryptionPublicKeys does not contain key %s",
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if intf.incoming && !intf.force && !intf.links.core.peers.isAllowedEncryptionPublicKey(&meta.box) {
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intf.links.core.log.Warnf("%s connection from %s forbidden: AllowedEncryptionPublicKeys does not contain key %s",
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strings.ToUpper(intf.info.linkType), intf.info.remote, hex.EncodeToString(meta.box[:]))
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intf.msgIO.close()
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return nil
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@ -200,12 +200,12 @@ func (intf *linkInterface) handler() error {
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// Check if we already have a link to this node
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intf.info.box = meta.box
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intf.info.sig = meta.sig
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intf.link.mutex.Lock()
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if oldIntf, isIn := intf.link.interfaces[intf.info]; isIn {
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intf.link.mutex.Unlock()
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intf.links.mutex.Lock()
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if oldIntf, isIn := intf.links.interfaces[intf.info]; isIn {
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intf.links.mutex.Unlock()
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// FIXME we should really return an error and let the caller block instead
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// That lets them do things like close connections on its own, avoid printing a connection message in the first place, etc.
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intf.link.core.log.Debugln("DEBUG: found existing interface for", intf.name)
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intf.links.core.log.Debugln("DEBUG: found existing interface for", intf.name)
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intf.msgIO.close()
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if !intf.incoming {
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// Block outgoing connection attempts until the existing connection closes
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@ -214,21 +214,21 @@ func (intf *linkInterface) handler() error {
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return nil
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} else {
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intf.closed = make(chan struct{})
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intf.link.interfaces[intf.info] = intf
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intf.links.interfaces[intf.info] = intf
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defer func() {
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intf.link.mutex.Lock()
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delete(intf.link.interfaces, intf.info)
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intf.link.mutex.Unlock()
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intf.links.mutex.Lock()
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delete(intf.links.interfaces, intf.info)
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intf.links.mutex.Unlock()
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close(intf.closed)
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}()
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intf.link.core.log.Debugln("DEBUG: registered interface for", intf.name)
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intf.links.core.log.Debugln("DEBUG: registered interface for", intf.name)
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}
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intf.link.mutex.Unlock()
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intf.links.mutex.Unlock()
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// Create peer
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shared := crypto.GetSharedKey(myLinkPriv, &meta.link)
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phony.Block(&intf.link.core.peers, func() {
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phony.Block(&intf.links.core.peers, func() {
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// FIXME don't use phony.Block, it's bad practice, even if it's safe here
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intf.peer = intf.link.core.peers._newPeer(&meta.box, &meta.sig, shared, intf)
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intf.peer = intf.links.core.peers._newPeer(&meta.box, &meta.sig, shared, intf)
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})
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if intf.peer == nil {
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return errors.New("failed to create peer")
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@ -240,7 +240,7 @@ func (intf *linkInterface) handler() error {
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themAddr := address.AddrForNodeID(crypto.GetNodeID(&intf.info.box))
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themAddrString := net.IP(themAddr[:]).String()
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themString := fmt.Sprintf("%s@%s", themAddrString, intf.info.remote)
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intf.link.core.log.Infof("Connected %s: %s, source %s",
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intf.links.core.log.Infof("Connected %s: %s, source %s",
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strings.ToUpper(intf.info.linkType), themString, intf.info.local)
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// Start things
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go intf.peer.start()
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@ -252,7 +252,7 @@ func (intf *linkInterface) handler() error {
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defer close(done)
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go func() {
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select {
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case <-intf.link.stopped:
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case <-intf.links.stopped:
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intf.msgIO.close()
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case <-done:
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}
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@ -260,10 +260,10 @@ func (intf *linkInterface) handler() error {
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err = <-intf.reader.err
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// TODO don't report an error if it's just a 'use of closed network connection'
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if err != nil {
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intf.link.core.log.Infof("Disconnected %s: %s, source %s; error: %s",
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intf.links.core.log.Infof("Disconnected %s: %s, source %s; error: %s",
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strings.ToUpper(intf.info.linkType), themString, intf.info.local, err)
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} else {
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intf.link.core.log.Infof("Disconnected %s: %s, source %s",
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intf.links.core.log.Infof("Disconnected %s: %s, source %s",
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strings.ToUpper(intf.info.linkType), themString, intf.info.local)
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}
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return err
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@ -355,7 +355,7 @@ func (intf *linkInterface) notifyBlockedSend() {
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if intf.sendTimer != nil && !intf.blocked {
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//As far as we know, we're still trying to send, and the timer fired.
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intf.blocked = true
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intf.link.core.switchTable.blockPeer(intf, intf.peer.port)
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intf.links.core.switchTable.blockPeer(intf, intf.peer.port)
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}
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})
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}
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@ -392,7 +392,7 @@ func (intf *linkInterface) notifyStalled() {
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intf.stallTimer.Stop()
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intf.stallTimer = nil
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intf.blocked = true
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intf.link.core.switchTable.blockPeer(intf, intf.peer.port)
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intf.links.core.switchTable.blockPeer(intf, intf.peer.port)
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}
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})
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}
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@ -419,7 +419,7 @@ func (intf *linkInterface) notifyRead(size int) {
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}
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if intf.blocked {
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intf.blocked = false
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intf.link.core.switchTable.unblockPeer(intf, intf.peer.port)
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intf.links.core.switchTable.unblockPeer(intf, intf.peer.port)
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}
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})
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}
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@ -58,7 +58,7 @@ func (c *Core) NewSimlink() *Simlink {
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s := &Simlink{rch: make(chan []byte, 1)}
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n := "Simlink"
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var err error
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s.link, err = c.link.create(s, n, n, n, n, false, true)
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s.link, err = c.links.create(s, n, n, n, n, false, true)
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if err != nil {
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panic(err)
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}
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@ -9,7 +9,7 @@ import (
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)
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// Test that this matches the interface we expect
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var _ = linkInterfaceMsgIO(&stream{})
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var _ = linkMsgIO(&stream{})
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type stream struct {
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rwc io.ReadWriteCloser
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@ -188,7 +188,7 @@ func (t *switchTable) init(core *Core) {
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func (t *switchTable) reconfigure() {
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// This is where reconfiguration would go, if we had anything useful to do.
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t.core.link.reconfigure()
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t.core.links.reconfigure()
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t.core.peers.reconfigure()
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}
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@ -33,7 +33,7 @@ const tcp_ping_interval = (default_timeout * 2 / 3)
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// The TCP listener and information about active TCP connections, to avoid duplication.
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type tcp struct {
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link *link
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links *links
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waitgroup sync.WaitGroup
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mutex sync.Mutex // Protecting the below
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listeners map[string]*TcpListener
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@ -86,8 +86,8 @@ func (t *tcp) getAddr() *net.TCPAddr {
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}
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// Initializes the struct.
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func (t *tcp) init(l *link) error {
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t.link = l
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func (t *tcp) init(l *links) error {
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t.links = l
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t.tls.init(t)
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t.mutex.Lock()
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t.calls = make(map[string]struct{})
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@ -95,9 +95,9 @@ func (t *tcp) init(l *link) error {
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t.listeners = make(map[string]*TcpListener)
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t.mutex.Unlock()
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t.link.core.config.Mutex.RLock()
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defer t.link.core.config.Mutex.RUnlock()
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for _, listenaddr := range t.link.core.config.Current.Listen {
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t.links.core.config.Mutex.RLock()
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defer t.links.core.config.Mutex.RUnlock()
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for _, listenaddr := range t.links.core.config.Current.Listen {
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switch listenaddr[:6] {
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case "tcp://":
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if _, err := t.listen(listenaddr[6:], nil); err != nil {
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@ -108,7 +108,7 @@ func (t *tcp) init(l *link) error {
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return err
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}
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default:
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t.link.core.log.Errorln("Failed to add listener: listener", listenaddr, "is not correctly formatted, ignoring")
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t.links.core.log.Errorln("Failed to add listener: listener", listenaddr, "is not correctly formatted, ignoring")
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}
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}
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@ -126,35 +126,35 @@ func (t *tcp) stop() error {
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}
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func (t *tcp) reconfigure() {
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t.link.core.config.Mutex.RLock()
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added := util.Difference(t.link.core.config.Current.Listen, t.link.core.config.Previous.Listen)
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deleted := util.Difference(t.link.core.config.Previous.Listen, t.link.core.config.Current.Listen)
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t.link.core.config.Mutex.RUnlock()
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t.links.core.config.Mutex.RLock()
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added := util.Difference(t.links.core.config.Current.Listen, t.links.core.config.Previous.Listen)
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deleted := util.Difference(t.links.core.config.Previous.Listen, t.links.core.config.Current.Listen)
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t.links.core.config.Mutex.RUnlock()
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if len(added) > 0 || len(deleted) > 0 {
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for _, a := range added {
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switch a[:6] {
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case "tcp://":
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if _, err := t.listen(a[6:], nil); err != nil {
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t.link.core.log.Errorln("Error adding TCP", a[6:], "listener:", err)
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t.links.core.log.Errorln("Error adding TCP", a[6:], "listener:", err)
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}
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case "tls://":
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if _, err := t.listen(a[6:], t.tls.forListener); err != nil {
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t.link.core.log.Errorln("Error adding TLS", a[6:], "listener:", err)
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t.links.core.log.Errorln("Error adding TLS", a[6:], "listener:", err)
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}
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default:
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t.link.core.log.Errorln("Failed to add listener: listener", a, "is not correctly formatted, ignoring")
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t.links.core.log.Errorln("Failed to add listener: listener", a, "is not correctly formatted, ignoring")
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}
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}
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for _, d := range deleted {
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if d[:6] != "tcp://" && d[:6] != "tls://" {
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t.link.core.log.Errorln("Failed to delete listener: listener", d, "is not correctly formatted, ignoring")
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t.links.core.log.Errorln("Failed to delete listener: listener", d, "is not correctly formatted, ignoring")
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continue
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}
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t.mutex.Lock()
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if listener, ok := t.listeners[d[6:]]; ok {
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t.mutex.Unlock()
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listener.Stop()
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t.link.core.log.Infoln("Stopped TCP listener:", d[6:])
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t.links.core.log.Infoln("Stopped TCP listener:", d[6:])
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} else {
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t.mutex.Unlock()
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}
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@ -202,13 +202,13 @@ func (t *tcp) listener(l *TcpListener, listenaddr string) {
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}
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// And here we go!
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defer func() {
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t.link.core.log.Infoln("Stopping TCP listener on:", l.Listener.Addr().String())
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t.links.core.log.Infoln("Stopping TCP listener on:", l.Listener.Addr().String())
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l.Listener.Close()
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t.mutex.Lock()
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delete(t.listeners, listenaddr)
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t.mutex.Unlock()
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}()
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t.link.core.log.Infoln("Listening for TCP on:", l.Listener.Addr().String())
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t.links.core.log.Infoln("Listening for TCP on:", l.Listener.Addr().String())
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||||
go func() {
|
||||
<-l.stop
|
||||
l.Listener.Close()
|
||||
@ -217,7 +217,7 @@ func (t *tcp) listener(l *TcpListener, listenaddr string) {
|
||||
for {
|
||||
sock, err := l.Listener.Accept()
|
||||
if err != nil {
|
||||
t.link.core.log.Errorln("Failed to accept connection:", err)
|
||||
t.links.core.log.Errorln("Failed to accept connection:", err)
|
||||
return
|
||||
}
|
||||
t.waitgroup.Add(1)
|
||||
@ -344,7 +344,7 @@ func (t *tcp) call(saddr string, options interface{}, sintf string, upgrade *Tcp
|
||||
}
|
||||
conn, err = dialer.Dial("tcp", dst.String())
|
||||
if err != nil {
|
||||
t.link.core.log.Debugf("Failed to dial %s: %s", callproto, err)
|
||||
t.links.core.log.Debugf("Failed to dial %s: %s", callproto, err)
|
||||
return
|
||||
}
|
||||
t.waitgroup.Add(1)
|
||||
@ -361,7 +361,7 @@ func (t *tcp) handler(sock net.Conn, incoming bool, options interface{}, upgrade
|
||||
if upgrade != nil {
|
||||
var err error
|
||||
if sock, err = upgrade.upgrade(sock); err != nil {
|
||||
t.link.core.log.Errorln("TCP handler upgrade failed:", err)
|
||||
t.links.core.log.Errorln("TCP handler upgrade failed:", err)
|
||||
return
|
||||
} else {
|
||||
upgraded = true
|
||||
@ -387,12 +387,12 @@ func (t *tcp) handler(sock net.Conn, incoming bool, options interface{}, upgrade
|
||||
remote, _, _ = net.SplitHostPort(sock.RemoteAddr().String())
|
||||
}
|
||||
force := net.ParseIP(strings.Split(remote, "%")[0]).IsLinkLocalUnicast()
|
||||
link, err := t.link.core.link.create(&stream, name, proto, local, remote, incoming, force)
|
||||
link, err := t.links.create(&stream, name, proto, local, remote, incoming, force)
|
||||
if err != nil {
|
||||
t.link.core.log.Println(err)
|
||||
t.links.core.log.Println(err)
|
||||
panic(err)
|
||||
}
|
||||
t.link.core.log.Debugln("DEBUG: starting handler for", name)
|
||||
t.links.core.log.Debugln("DEBUG: starting handler for", name)
|
||||
err = link.handler()
|
||||
t.link.core.log.Debugln("DEBUG: stopped handler for", name, err)
|
||||
t.links.core.log.Debugln("DEBUG: stopped handler for", name, err)
|
||||
}
|
||||
|
||||
@ -20,10 +20,10 @@ func (t *tcp) tcpContext(network, address string, c syscall.RawConn) error {
|
||||
|
||||
// Log any errors
|
||||
if bbr != nil {
|
||||
t.link.core.log.Debugln("Failed to set tcp_congestion_control to bbr for socket, SetsockoptString error:", bbr)
|
||||
t.links.core.log.Debugln("Failed to set tcp_congestion_control to bbr for socket, SetsockoptString error:", bbr)
|
||||
}
|
||||
if control != nil {
|
||||
t.link.core.log.Debugln("Failed to set tcp_congestion_control to bbr for socket, Control error:", control)
|
||||
t.links.core.log.Debugln("Failed to set tcp_congestion_control to bbr for socket, Control error:", control)
|
||||
}
|
||||
|
||||
// Return nil because errors here are not considered fatal for the connection, it just means congestion control is suboptimal
|
||||
@ -38,7 +38,7 @@ func (t *tcp) getControl(sintf string) func(string, string, syscall.RawConn) err
|
||||
}
|
||||
c.Control(btd)
|
||||
if err != nil {
|
||||
t.link.core.log.Debugln("Failed to set SO_BINDTODEVICE:", sintf)
|
||||
t.links.core.log.Debugln("Failed to set SO_BINDTODEVICE:", sintf)
|
||||
}
|
||||
return t.tcpContext(network, address, c)
|
||||
}
|
||||
|
||||
@ -34,7 +34,7 @@ func (t *tcptls) init(tcp *tcp) {
|
||||
}
|
||||
|
||||
edpriv := make(ed25519.PrivateKey, ed25519.PrivateKeySize)
|
||||
copy(edpriv[:], tcp.link.core.sigPriv[:])
|
||||
copy(edpriv[:], tcp.links.core.sigPriv[:])
|
||||
|
||||
certBuf := &bytes.Buffer{}
|
||||
|
||||
@ -42,7 +42,7 @@ func (t *tcptls) init(tcp *tcp) {
|
||||
pubtemp := x509.Certificate{
|
||||
SerialNumber: big.NewInt(1),
|
||||
Subject: pkix.Name{
|
||||
CommonName: hex.EncodeToString(tcp.link.core.sigPub[:]),
|
||||
CommonName: hex.EncodeToString(tcp.links.core.sigPub[:]),
|
||||
},
|
||||
NotBefore: time.Now(),
|
||||
NotAfter: time.Now().Add(time.Hour * 24 * 365),
|
||||
|
||||
Loading…
Reference in New Issue
Block a user