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https://github.com/cwinfo/yggdrasil-go.git
synced 2024-11-09 16:20:26 +00:00
change multicast config format
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parent
2a7a53b6b6
commit
2874ce1327
@ -31,7 +31,7 @@ type NodeConfig struct {
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InterfacePeers map[string][]string `comment:"List of connection strings for outbound peer connections in URI format,\narranged by source interface, e.g. { \"eth0\": [ tls://a.b.c.d:e ] }.\nNote that SOCKS peerings will NOT be affected by this option and should\ngo in the \"Peers\" section instead."`
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Listen []string `comment:"Listen addresses for incoming connections. You will need to add\nlisteners in order to accept incoming peerings from non-local nodes.\nMulticast peer discovery will work regardless of any listeners set\nhere. Each listener should be specified in URI format as above, e.g.\ntls://0.0.0.0:0 or tls://[::]:0 to listen on all interfaces."`
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AdminListen string `comment:"Listen address for admin connections. Default is to listen for local\nconnections either on TCP/9001 or a UNIX socket depending on your\nplatform. Use this value for yggdrasilctl -endpoint=X. To disable\nthe admin socket, use the value \"none\" instead."`
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MulticastInterfaces []string `comment:"Regular expressions for which interfaces multicast peer discovery\nshould be enabled on. If none specified, multicast peer discovery is\ndisabled. The default value is .* which uses all interfaces."`
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MulticastInterfaces []MulticastInterfaceConfig `comment:"Regular expressions for which interfaces multicast peer discovery\nshould be enabled on. If none specified, multicast peer discovery is\ndisabled. The default value is .* which uses all interfaces."`
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AllowedPublicKeys []string `comment:"List of peer public keys to allow incoming peering connections\nfrom. If left empty/undefined then all connections will be allowed\nby default. This does not affect outgoing peerings, nor does it\naffect link-local peers discovered via multicast."`
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PublicKey string `comment:"Your public key. Your peers may ask you for this to put\ninto their AllowedPublicKeys configuration."`
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PrivateKey string `comment:"Your private key. DO NOT share this with anyone!"`
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@ -42,6 +42,12 @@ type NodeConfig struct {
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NodeInfo map[string]interface{} `comment:"Optional node info. This must be a { \"key\": \"value\", ... } map\nor set as null. This is entirely optional but, if set, is visible\nto the whole network on request."`
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}
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type MulticastInterfaceConfig struct {
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Regex string
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Incoming bool
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Outgoing bool
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}
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// NewSigningKeys replaces the signing keypair in the NodeConfig with a new
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// signing keypair. The signing keys are used by the switch to derive the
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// structure of the spanning tree.
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@ -2,6 +2,8 @@ package defaults
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import "github.com/yggdrasil-network/yggdrasil-go/src/config"
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type MulticastInterfaceConfig = config.MulticastInterfaceConfig
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// Defines which parameters are expected by default for configuration on a
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// specific platform. These values are populated in the relevant defaults_*.go
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// for the platform being targeted. They must be set.
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@ -13,7 +15,7 @@ type platformDefaultParameters struct {
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DefaultConfigFile string
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// Multicast interfaces
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DefaultMulticastInterfaces []string
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DefaultMulticastInterfaces []MulticastInterfaceConfig
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// TUN/TAP
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MaximumIfMTU uint64
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@ -13,9 +13,9 @@ func GetDefaults() platformDefaultParameters {
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DefaultConfigFile: "/etc/yggdrasil.conf",
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// Multicast interfaces
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DefaultMulticastInterfaces: []string{
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"en.*",
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"bridge.*",
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DefaultMulticastInterfaces: []MulticastInterfaceConfig{
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{Regex: "en.*", Incoming: true, Outgoing: true},
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{Regex: "bridge.*", Incoming: true, Outgoing: true},
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},
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// TUN/TAP
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@ -13,8 +13,8 @@ func GetDefaults() platformDefaultParameters {
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DefaultConfigFile: "/usr/local/etc/yggdrasil.conf",
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// Multicast interfaces
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DefaultMulticastInterfaces: []string{
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".*",
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DefaultMulticastInterfaces: []MulticastInterfaceConfig{
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{Regex: ".*", Incoming: true, Outgoing: true},
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},
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// TUN/TAP
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@ -13,8 +13,8 @@ func GetDefaults() platformDefaultParameters {
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DefaultConfigFile: "/etc/yggdrasil.conf",
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// Multicast interfaces
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DefaultMulticastInterfaces: []string{
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".*",
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DefaultMulticastInterfaces: []MulticastInterfaceConfig{
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{Regex: ".*", Incoming: true, Outgoing: true},
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},
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// TUN/TAP
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@ -13,8 +13,8 @@ func GetDefaults() platformDefaultParameters {
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DefaultConfigFile: "/etc/yggdrasil.conf",
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// Multicast interfaces
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DefaultMulticastInterfaces: []string{
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".*",
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DefaultMulticastInterfaces: []MulticastInterfaceConfig{
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{Regex: ".*", Incoming: true, Outgoing: true},
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},
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// TUN/TAP
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@ -13,8 +13,8 @@ func GetDefaults() platformDefaultParameters {
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DefaultConfigFile: "/etc/yggdrasil.conf",
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// Multicast interfaces
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DefaultMulticastInterfaces: []string{
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".*",
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DefaultMulticastInterfaces: []MulticastInterfaceConfig{
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{Regex: ".*", Incoming: true, Outgoing: true},
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},
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// TUN/TAP
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@ -13,8 +13,8 @@ func GetDefaults() platformDefaultParameters {
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DefaultConfigFile: "C:\\Program Files\\Yggdrasil\\yggdrasil.conf",
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// Multicast interfaces
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DefaultMulticastInterfaces: []string{
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".*",
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DefaultMulticastInterfaces: []MulticastInterfaceConfig{
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{Regex: ".*", Incoming: true, Outgoing: true},
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},
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// TUN/TAP
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@ -40,6 +40,8 @@ type Multicast struct {
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type interfaceInfo struct {
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iface net.Interface
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addrs []net.Addr
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incoming bool
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outgoing bool
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}
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type listenerInfo struct {
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@ -136,18 +138,16 @@ func (m *Multicast) _stop() error {
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}
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func (m *Multicast) _updateInterfaces() {
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interfaces := make(map[string]interfaceInfo)
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intfs := m.getAllowedInterfaces()
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for _, intf := range intfs {
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addrs, err := intf.Addrs()
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interfaces := m.getAllowedInterfaces()
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for name, info := range interfaces {
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addrs, err := info.iface.Addrs()
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if err != nil {
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m.log.Warnf("Failed up get addresses for interface %s: %s", intf.Name, err)
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m.log.Warnf("Failed up get addresses for interface %s: %s", name, err)
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delete(interfaces, name)
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continue
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}
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interfaces[intf.Name] = interfaceInfo{
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iface: intf,
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addrs: addrs,
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}
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info.addrs = addrs
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interfaces[name] = info
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}
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m._interfaces = interfaces
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}
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@ -163,10 +163,10 @@ func (m *Multicast) Interfaces() map[string]net.Interface {
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}
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// getAllowedInterfaces returns the currently known/enabled multicast interfaces.
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func (m *Multicast) getAllowedInterfaces() map[string]net.Interface {
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interfaces := make(map[string]net.Interface)
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func (m *Multicast) getAllowedInterfaces() map[string]interfaceInfo {
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interfaces := make(map[string]interfaceInfo)
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// Get interface expressions from config
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exprs := m.config.MulticastInterfaces
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ifcfgs := m.config.MulticastInterfaces
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// Ask the system for network interfaces
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allifaces, err := net.Interfaces()
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if err != nil {
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@ -188,15 +188,23 @@ func (m *Multicast) getAllowedInterfaces() map[string]net.Interface {
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// Ignore point-to-point interfaces
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continue
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}
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for _, expr := range exprs {
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for _, ifcfg := range ifcfgs {
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// Compile each regular expression
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e, err := regexp.Compile(expr)
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e, err := regexp.Compile(ifcfg.Regex)
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if err != nil {
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panic(err)
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}
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// Does the interface match the regular expression? Store it if so
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if e.MatchString(iface.Name) {
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interfaces[iface.Name] = iface
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if ifcfg.Incoming || ifcfg.Outgoing {
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info := interfaceInfo{
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iface: iface,
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incoming: ifcfg.Incoming,
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outgoing: ifcfg.Outgoing,
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}
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interfaces[iface.Name] = info
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}
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break
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}
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}
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}
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@ -272,8 +280,13 @@ func (m *Multicast) _announce() {
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if !addrIP.IsLinkLocalUnicast() {
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continue
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}
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// Join the multicast group
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if info.outgoing {
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// Join the multicast group, so we can listen for advertisements to open outgoing connections
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_ = m.sock.JoinGroup(&iface, groupAddr)
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}
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if !info.incoming {
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break // Don't send multicast advertisements if we don't accept incoming connections
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}
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// Try and see if we already have a TCP listener for this interface
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var info *listenerInfo
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if nfo, ok := m.listeners[iface.Name]; !ok || nfo.listener.Listener == nil {
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@ -378,7 +391,7 @@ func (m *Multicast) listen() {
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phony.Block(m, func() {
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interfaces = m._interfaces
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})
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if _, ok := interfaces[from.Zone]; ok {
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if info, ok := interfaces[from.Zone]; ok && info.outgoing {
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addr.Zone = ""
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pin := fmt.Sprintf("/?key=%s", hex.EncodeToString(key))
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u, err := url.Parse("tls://" + addr.String() + pin)
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