server: enable IPv6 LAN discovery

config.toml

@@ -3,6 +3,9 @@
   # The address of the server, including the port. The server will be listening on this address. If another
   # server is already running on this port, please select a different port.
   Address = ":19132"
+  # The IPv6 address of the server. Leave empty to disable the IPv6 listener. Port 19133 is the Bedrock default
+  # for IPv6 LAN discovery.
+  AddressV6 = "[::]:19133"
 
 [Server]
   # The name as it shows up in the server list. Minecraft colour codes may be used in this name to format the

go.mod

@@ -13,22 +13,46 @@ require (
 	github.com/sandertv/gophertunnel v1.57.0
 	github.com/segmentio/fasthash v1.0.3
 	golang.org/x/exp v0.0.0-20250103183323-7d7fa50e5329
-	golang.org/x/mod v0.22.0
-	golang.org/x/text v0.23.0
-	golang.org/x/tools v0.28.0
+	golang.org/x/mod v0.32.0
+	golang.org/x/text v0.34.0
+	golang.org/x/tools v0.41.0
 )
 
+replace github.com/sandertv/gophertunnel => github.com/HashimTheArab/gophertunnel v1.25.3-0.20260711143608-4724458c7a08
+
 require (
 	github.com/coreos/go-oidc/v3 v3.17.0 // indirect
+	github.com/df-mc/go-nethernet v1.0.17 // indirect
 	github.com/df-mc/go-playfab v1.0.0 // indirect
 	github.com/df-mc/go-xsapi v1.0.1 // indirect
 	github.com/df-mc/jsonc v1.0.5 // indirect
-	github.com/go-jose/go-jose/v4 v4.1.3 // indirect
+	github.com/go-jose/go-jose/v4 v4.1.4 // indirect
 	github.com/golang/snappy v0.0.4 // indirect
 	github.com/klauspost/compress v1.18.4 // indirect
+	github.com/nxadm/tail v1.4.11 // indirect
+	github.com/pion/datachannel v1.6.0 // indirect
+	github.com/pion/dtls/v3 v3.1.2 // indirect
+	github.com/pion/ice/v4 v4.2.1 // indirect
+	github.com/pion/interceptor v0.1.44 // indirect
+	github.com/pion/logging v0.2.4 // indirect
+	github.com/pion/mdns/v2 v2.1.0 // indirect
+	github.com/pion/randutil v0.1.0 // indirect
+	github.com/pion/rtcp v1.2.16 // indirect
+	github.com/pion/rtp v1.10.1 // indirect
+	github.com/pion/sctp v1.9.2 // indirect
+	github.com/pion/sdp/v3 v3.0.18 // indirect
+	github.com/pion/srtp/v3 v3.0.10 // indirect
+	github.com/pion/stun/v3 v3.1.1 // indirect
+	github.com/pion/transport/v4 v4.0.1 // indirect
+	github.com/pion/turn/v4 v4.1.4 // indirect
+	github.com/pion/webrtc/v4 v4.2.10-0.20260224155637-aa3b95c72dd2 // indirect
 	github.com/sandertv/go-raknet v1.15.1-0.20260112202637-beca0b10c217 // indirect
-	golang.org/x/net v0.38.0 // indirect
+	github.com/wlynxg/anet v0.0.5 // indirect
+	golang.org/x/crypto v0.48.0 // indirect
+	golang.org/x/net v0.50.0 // indirect
 	golang.org/x/oauth2 v0.28.0 // indirect
-	golang.org/x/sync v0.12.0 // indirect
+	golang.org/x/sync v0.19.0 // indirect
+	golang.org/x/sys v0.41.0 // indirect
+	golang.org/x/time v0.10.0 // indirect
 	gopkg.in/yaml.v2 v2.3.0 // indirect
 )

go.sum

@@ -1,9 +1,15 @@
+github.com/HashimTheArab/gophertunnel v1.25.3-0.20260711143608-4724458c7a08 h1:GIFltYqTduYvfiGkiFTZ4JBnFKbue5lnyQIxU7KIvP8=
+github.com/HashimTheArab/gophertunnel v1.25.3-0.20260711143608-4724458c7a08/go.mod h1:Frjuk3g1EEGRYjzyrEMS4j/hDvTcez2STfuRHkRPlNU=
 github.com/brentp/intintmap v0.0.0-20251106190759-56907b1f8479 h1:UZbbt19ACBOFO+CiDQFjaEoPJkBhj7GNGtIq59WR6Os=
 github.com/brentp/intintmap v0.0.0-20251106190759-56907b1f8479/go.mod h1:TOk10ahXejq9wkEaym3KPRNeuR/h5Jx+s8QRWIa2oTM=
 github.com/cespare/xxhash/v2 v2.3.0 h1:UL815xU9SqsFlibzuggzjXhog7bL6oX9BbNZnL2UFvs=
 github.com/cespare/xxhash/v2 v2.3.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
 github.com/coreos/go-oidc/v3 v3.17.0 h1:hWBGaQfbi0iVviX4ibC7bk8OKT5qNr4klBaCHVNvehc=
 github.com/coreos/go-oidc/v3 v3.17.0/go.mod h1:wqPbKFrVnE90vty060SB40FCJ8fTHTxSwyXJqZH+sI8=
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/df-mc/go-nethernet v1.0.17 h1:3lbw/N+Zy4eU8dUREVMFhq9Xl8qXJsJomuHIwH2VO9Q=
+github.com/df-mc/go-nethernet v1.0.17/go.mod h1:4yrQZMotdkZJvdYnRQr5L8OnokZtSzqJ6EU3dntAaIU=
 github.com/df-mc/go-playfab v1.0.0 h1:6gVukk3aQbJ934GJFdcZJHVIw9lhauK+KHOevbwJA10=
 github.com/df-mc/go-playfab v1.0.0/go.mod h1:nGOlE+JFGOH5Z0iidEgJapHhndFi/oNk17RN9pKCF+k=
 github.com/df-mc/go-xsapi v1.0.1 h1:H1SbxYr4rXOqZSB8MwiODbDUsHRihxbHf+YOljUWgXw=
@@ -15,10 +21,12 @@ github.com/df-mc/jsonc v1.0.5/go.mod h1:+Q++JuCE9IKiP8v7sWImdf/RjQX0nfXyfX6PdfTT
 github.com/df-mc/worldupgrader v1.0.21 h1:Qr4/QB8ek7En0vkTuRXYq4FrZM0HHSOXsJOL7Ko4Cjg=
 github.com/df-mc/worldupgrader v1.0.21/go.mod h1:tsSOLTRm9mpG7VHvYpAjjZrkRHWmSbKZAm9bOLNnlDk=
 github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
+github.com/fsnotify/fsnotify v1.6.0 h1:n+5WquG0fcWoWp6xPWfHdbskMCQaFnG6PfBrh1Ky4HY=
+github.com/fsnotify/fsnotify v1.6.0/go.mod h1:sl3t1tCWJFWoRz9R8WJCbQihKKwmorjAbSClcnxKAGw=
 github.com/go-gl/mathgl v1.2.0 h1:v2eOj/y1B2afDxF6URV1qCYmo1KW08lAMtTbOn3KXCY=
 github.com/go-gl/mathgl v1.2.0/go.mod h1:pf9+b5J3LFP7iZ4XXaVzZrCle0Q/vNpB/vDe5+3ulRE=
-github.com/go-jose/go-jose/v4 v4.1.3 h1:CVLmWDhDVRa6Mi/IgCgaopNosCaHz7zrMeF9MlZRkrs=
-github.com/go-jose/go-jose/v4 v4.1.3/go.mod h1:x4oUasVrzR7071A4TnHLGSPpNOm2a21K9Kf04k1rs08=
+github.com/go-jose/go-jose/v4 v4.1.4 h1:moDMcTHmvE6Groj34emNPLs/qtYXRVcd6S7NHbHz3kA=
+github.com/go-jose/go-jose/v4 v4.1.4/go.mod h1:x4oUasVrzR7071A4TnHLGSPpNOm2a21K9Kf04k1rs08=
 github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
 github.com/golang/snappy v0.0.1/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q=
 github.com/golang/snappy v0.0.4 h1:yAGX7huGHXlcLOEtBnF4w7FQwA26wojNCwOYAEhLjQM=
@@ -27,49 +35,98 @@ github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
 github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
 github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
 github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
-github.com/hpcloud/tail v1.0.0 h1:nfCOvKYfkgYP8hkirhJocXT2+zOD8yUNjXaWfTlyFKI=
 github.com/hpcloud/tail v1.0.0/go.mod h1:ab1qPbhIpdTxEkNHXyeSf5vhxWSCs/tWer42PpOxQnU=
 github.com/klauspost/compress v1.13.6/go.mod h1:/3/Vjq9QcHkK5uEr5lBEmyoZ1iFhe47etQ6QUkpK6sk=
 github.com/klauspost/compress v1.18.4 h1:RPhnKRAQ4Fh8zU2FY/6ZFDwTVTxgJ/EMydqSTzE9a2c=
 github.com/klauspost/compress v1.18.4/go.mod h1:R0h/fSBs8DE4ENlcrlib3PsXS61voFxhIs2DeRhCvJ4=
+github.com/nxadm/tail v1.4.11 h1:8feyoE3OzPrcshW5/MJ4sGESc5cqmGkGCWlco4l0bqY=
+github.com/nxadm/tail v1.4.11/go.mod h1:OTaG3NK980DZzxbRq6lEuzgU+mug70nY11sMd4JXXHc=
 github.com/onsi/ginkgo v1.6.0/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE=
-github.com/onsi/ginkgo v1.7.0 h1:WSHQ+IS43OoUrWtD1/bbclrwK8TTH5hzp+umCiuxHgs=
 github.com/onsi/ginkgo v1.7.0/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE=
-github.com/onsi/gomega v1.4.3 h1:RE1xgDvH7imwFD45h+u2SgIfERHlS2yNG4DObb5BSKU=
+github.com/onsi/ginkgo v1.16.5 h1:8xi0RTUf59SOSfEtZMvwTvXYMzG4gV23XVHOZiXNtnE=
+github.com/onsi/ginkgo v1.16.5/go.mod h1:+E8gABHa3K6zRBolWtd+ROzc/U5bkGt0FwiG042wbpU=
 github.com/onsi/gomega v1.4.3/go.mod h1:ex+gbHU/CVuBBDIJjb2X0qEXbFg53c61hWP/1CpauHY=
+github.com/onsi/gomega v1.17.0 h1:9Luw4uT5HTjHTN8+aNcSThgH1vdXnmdJ8xIfZ4wyTRE=
+github.com/onsi/gomega v1.17.0/go.mod h1:HnhC7FXeEQY45zxNK3PPoIUhzk/80Xly9PcubAlGdZY=
 github.com/pelletier/go-toml v1.9.5 h1:4yBQzkHv+7BHq2PQUZF3Mx0IYxG7LsP222s7Agd3ve8=
 github.com/pelletier/go-toml v1.9.5/go.mod h1:u1nR/EPcESfeI/szUZKdtJ0xRNbUoANCkoOuaOx1Y+c=
+github.com/pion/datachannel v1.6.0 h1:XecBlj+cvsxhAMZWFfFcPyUaDZtd7IJvrXqlXD/53i0=
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+github.com/pion/dtls/v3 v3.1.2 h1:gqEdOUXLtCGW+afsBLO0LtDD8GnuBBjEy6HRtyofZTc=
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 golang.org/x/oauth2 v0.28.0/go.mod h1:onh5ek6nERTohokkhCD/y2cV4Do3fxFHFuAejCkRWT8=
 golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sync v0.12.0 h1:MHc5BpPuC30uJk597Ri8TV3CNZcTLu6B6z4lJy+g6Jw=
-golang.org/x/sync v0.12.0/go.mod h1:1dzgHSNfp02xaA81J2MS99Qcpr2w7fw1gpm99rleRqA=
+golang.org/x/sync v0.19.0 h1:vV+1eWNmZ5geRlYjzm2adRgW2/mcpevXNg50YZtPCE4=
+golang.org/x/sync v0.19.0/go.mod h1:9KTHXmSnoGruLpwFjVSX0lNNA75CykiMECbovNTZqGI=
 golang.org/x/sys v0.0.0-20180909124046-d0be0721c37e/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
-golang.org/x/sys v0.31.0 h1:ioabZlmFYtWhL+TRYpcnNlLwhyxaM9kWTDEmfnprqik=
-golang.org/x/sys v0.31.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
+golang.org/x/sys v0.0.0-20220908164124-27713097b956/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.41.0 h1:Ivj+2Cp/ylzLiEU89QhWblYnOE9zerudt9Ftecq2C6k=
+golang.org/x/sys v0.41.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
+golang.org/x/term v0.40.0 h1:36e4zGLqU4yhjlmxEaagx2KuYbJq3EwY8K943ZsHcvg=
+golang.org/x/term v0.40.0/go.mod h1:w2P8uVp06p2iyKKuvXIm7N/y0UCRt3UfJTfZ7oOpglM=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
-golang.org/x/text v0.23.0 h1:D71I7dUrlY+VX0gQShAThNGHFxZ13dGLBHQLVl1mJlY=
-golang.org/x/text v0.23.0/go.mod h1:/BLNzu4aZCJ1+kcD0DNRotWKage4q2rGVAg4o22unh4=
-golang.org/x/tools v0.28.0 h1:WuB6qZ4RPCQo5aP3WdKZS7i595EdWqWR8vqJTlwTVK8=
-golang.org/x/tools v0.28.0/go.mod h1:dcIOrVd3mfQKTgrDVQHqCPMWy6lnhfhtX3hLXYVLfRw=
+golang.org/x/text v0.34.0 h1:oL/Qq0Kdaqxa1KbNeMKwQq0reLCCaFtqu2eNuSeNHbk=
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+golang.org/x/time v0.10.0 h1:3usCWA8tQn0L8+hFJQNgzpWbd89begxN66o1Ojdn5L4=
+golang.org/x/time v0.10.0/go.mod h1:3BpzKBy/shNhVucY/MWOyx10tF3SFh9QdLuxbVysPQM=
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 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/fsnotify.v1 v1.4.7 h1:xOHLXZwVvI9hhs+cLKq5+I5onOuwQLhQwiu63xxlHs4=
 gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
 gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 h1:uRGJdciOHaEIrze2W8Q3AKkepLTh2hOroT7a+7czfdQ=
 gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
 gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.3.0 h1:clyUAQHOM3G0M3f5vQj7LuJrETvjVot3Z5el9nffUtU=
 gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

server/conf.go

@@ -187,10 +187,11 @@ func (conf Config) New() *Server {
 		p:        make(map[uuid.UUID]*onlinePlayer),
 		world:    &world.World{}, nether: &world.World{}, end: &world.World{},
 	}
-	for _, lf := range conf.Listeners {
-		l, err := lf(conf)
+	for _, lf := range srv.conf.Listeners {
+		l, err := lf(srv.conf)
 		if err != nil {
 			conf.Log.Error("create listener: " + err.Error())
+			continue
 		}
 		srv.listeners = append(srv.listeners, l)
 	}
@@ -215,6 +216,9 @@ type UserConfig struct {
 		// Address is the address on which the server should listen. Players may
 		// connect to this address in order to join.
 		Address string
+		// AddressV6 is the IPv6 address on which the server should listen. Leave
+		// empty to disable the IPv6 listener.
+		AddressV6 string
 	}
 	Server struct {
 		// Name is the name of the server as it shows up in the server list.
@@ -304,7 +308,11 @@ func (uc UserConfig) Config(log *slog.Logger) (Config, error) {
 			return conf, fmt.Errorf("create player provider: %w", err)
 		}
 	}
-	conf.Listeners = append(conf.Listeners, uc.listenerFunc)
+	group := new(minecraft.ListenerGroup)
+	conf.Listeners = append(conf.Listeners, listenerFunc(uc.Network.Address, group))
+	if uc.Network.AddressV6 != "" {
+		conf.Listeners = append(conf.Listeners, listenerFunc(uc.Network.AddressV6, group))
+	}
 	return conf, nil
 }
 
@@ -345,6 +353,7 @@ func loadGenerator(dim world.Dimension) world.Generator {
 func DefaultConfig() UserConfig {
 	c := UserConfig{}
 	c.Network.Address = ":19132"
+	c.Network.AddressV6 = "[::]:19133"
 	c.Server.Name = "Dragonfly Server"
 	c.Server.AuthEnabled = true
 	c.World.SaveData = true

server/listener.go

@@ -21,26 +21,30 @@ type Listener interface {
 	io.Closer
 }
 
-// listenerFunc may be used to return a *minecraft.Listener using a Config. It
+// listenerFunc returns a function that creates a *minecraft.Listener on the address passed. Listeners
+// created with the same group share their player count, so that MaxPlayers applies across all of them. It
 // is the standard listener used when UserConfig.Config() is called.
-func (uc UserConfig) listenerFunc(conf Config) (Listener, error) {
-	cfg := minecraft.ListenConfig{
-		MaximumPlayers:         conf.MaxPlayers,
-		StatusProvider:         conf.StatusProvider,
-		AuthenticationDisabled: conf.AuthDisabled,
-		ResourcePacks:          conf.Resources,
-		TexturePacksRequired:   conf.ResourcesRequired,
-		Compression:            conf.Compression,
+func listenerFunc(address string, group *minecraft.ListenerGroup) func(conf Config) (Listener, error) {
+	return func(conf Config) (Listener, error) {
+		cfg := minecraft.ListenConfig{
+			MaximumPlayers:         conf.MaxPlayers,
+			ListenerGroup:          group,
+			StatusProvider:         conf.StatusProvider,
+			AuthenticationDisabled: conf.AuthDisabled,
+			ResourcePacks:          conf.Resources,
+			TexturePacksRequired:   conf.ResourcesRequired,
+			Compression:            conf.Compression,
+		}
+		if conf.Log.Enabled(context.Background(), slog.LevelDebug) {
+			cfg.ErrorLog = conf.Log.With("net origin", "gophertunnel")
+		}
+		l, err := cfg.Listen("raknet", address)
+		if err != nil {
+			return nil, fmt.Errorf("create minecraft listener (%v): %w", address, err)
+		}
+		conf.Log.Info("Listener running.", "addr", l.Addr())
+		return listener{l}, nil
 	}
-	if conf.Log.Enabled(context.Background(), slog.LevelDebug) {
-		cfg.ErrorLog = conf.Log.With("net origin", "gophertunnel")
-	}
-	l, err := cfg.Listen("raknet", uc.Network.Address)
-	if err != nil {
-		return nil, fmt.Errorf("create minecraft listener: %w", err)
-	}
-	conf.Log.Info("Listener running.", "addr", l.Addr())
-	return listener{l}, nil
 }
 
 // listener is a Listener implementation that wraps around a minecraft.Listener so that it can be listened on by