all: update to latest lneto

README.md

@@ -305,7 +305,7 @@ listening on http://192.168.1.46:80
 Minimal HTTP server that serves a static webpage using the low-level lneto interface.
 
 ```
-$ tinygo flash -target xiao-esp32c3 -ldflags="-X main.ssid=yourssid -X main.password=YourPasswordHere" -monitor 8kb ./examples/http-static/
+$ tinygo flash -target xiao-esp32c3 -ldflags="-X main.ssid=yourssid -X main.password=YourPasswordHere" -monitor ./examples/http-static/
 Connected to ESP32-C3
 Flashing: 627504/627504 bytes (100%)
 Connected to /dev/ttyACM0. Press Ctrl-C to exit.

espstack.go

@@ -48,7 +48,6 @@ func NewStack(dev *NetDev, cfg StackConfig) (*Stack, error) {
 	stack := &Stack{dev: dev}
 	const MTU = MaxFrameSize - ethernet.MaxOverheadSize + 4 // CRC not included:+4
 	err = stack.s.Reset(xnet.StackConfig{
-		StaticAddress:     cfg.StaticAddress,
 		DNSServer:         cfg.DNSServer,
 		NTPServer:         cfg.NTPServer,
 		Hostname:          cfg.Hostname,
@@ -131,6 +130,6 @@ func (stack *Stack) SetupWithDHCP(cfg DHCPConfig) (*xnet.DHCPResults, error) {
 	if err != nil {
 		return dhcpResults, err
 	}
-	lstack.SetGateway6(gatewayHW)
+	lstack.SetGatewayHardwareAddr(gatewayHW)
 	return dhcpResults, nil
 }

examples/ap/main-ap.go

@@ -7,7 +7,8 @@ import (
 	"net/netip"
 	"time"
 
-	"github.com/soypat/lneto/dhcpv4"
+	"github.com/soypat/lneto/dhcp/dhcpv4"
+	"github.com/soypat/lneto/ipv4"
 	"tinygo.org/x/espradio"
 )
 
@@ -61,13 +62,13 @@ func main() {
 	err = dhcpServer.Configure(dhcpv4.ServerConfig{
 		ServerAddr: addr.As4(),
 		Gateway:    addr.As4(),
-		Subnet:     subnet,
+		Subnet:     ipv4.PrefixFromNetip(subnet),
 	})
 	if err != nil {
 		failure("ap: dhcp server configure err: " + err.Error())
 	}
 
-	err = stack.LnetoStack().RegisterUDP(&dhcpServer, nil, dhcpv4.DefaultClientPort)
+	err = stack.LnetoStack().RegisterUDP4(&dhcpServer, addr.As4(), dhcpv4.DefaultClientPort)
 	if err != nil {
 		failure("ap: dhcp server register err: " + err.Error())
 	}

examples/connect-and-dhcp/main-dhcp.go

@@ -3,6 +3,7 @@
 package main
 
 import (
+	"net/netip"
 	"time"
 
 	"tinygo.org/x/espradio"
@@ -65,7 +66,13 @@ func main() {
 	if err != nil {
 		failure("DHCP failed: " + err.Error())
 	}
-	println("got IP:", dhcp.AssignedAddr.String())
+
+	addr, ok := netip.AddrFromSlice(dhcp.AssignedAddr4[:])
+	if !ok {
+		failure("invalid IP address")
+	}
+
+	println("got IP:", addr.String())
 	println("gateway:", dhcp.Router.String())
 	if len(dhcp.DNSServers) > 0 {
 		println("DNS:", dhcp.DNSServers[0].String())

examples/http-app/main-http.go

@@ -98,7 +98,13 @@ func main() {
 	if err != nil {
 		failure("DHCP failed: " + err.Error())
 	}
-	println("got IP:", dhcp.AssignedAddr.String())
+
+	addr, ok := netip.AddrFromSlice(dhcp.AssignedAddr4[:])
+	if !ok {
+		failure("invalid IP address")
+	}
+
+	println("got IP:", addr.String())
 
 	lstack := espstack.LnetoStack()
 	rstack := lstack.StackRetrying(lneto.BackoffStrategy(func(_ uint) time.Duration {
@@ -108,7 +114,7 @@ func main() {
 	if err != nil {
 		failure("ARP resolve failed: " + err.Error())
 	}
-	lstack.SetGateway6(gatewayHW)
+	lstack.SetGatewayHardwareAddr(gatewayHW)
 
 	// DNS lookup for NTP server and calculate time. If this fails just ignore.
 	println("resolving ntp host:", ntpHost)
@@ -138,13 +144,13 @@ func main() {
 		failure("tcppool create: " + err.Error())
 	}
 
-	listenAddr := netip.AddrPortFrom(dhcp.AssignedAddr, listenPort)
+	listenAddr := netip.AddrPortFrom(addr, listenPort)
 	var listener tcp.Listener
 	err = listener.Reset(listenPort, tcpPool)
 	if err != nil {
 		failure("listener reset: " + err.Error())
 	}
-	err = lstack.RegisterListener(&listener)
+	err = lstack.RegisterListenerTCP(&listener)
 	if err != nil {
 		failure("listener register: " + err.Error())
 	}

examples/http-static/main-httpstatic.go

@@ -88,7 +88,7 @@ func main() {
 	// VERY IMPORTANT TO START BEFORE USING STACK!
 	go loopForeverStack(espstack)
 
-	dhcpResults, err := espstack.SetupWithDHCP(espradio.DHCPConfig{})
+	dhcp, err := espstack.SetupWithDHCP(espradio.DHCPConfig{})
 	if err != nil {
 		failure("DHCP failed: " + err.Error())
 	}
@@ -111,15 +111,21 @@ func main() {
 	}
 
 	lstack := espstack.LnetoStack()
-	listenAddr := netip.AddrPortFrom(dhcpResults.AssignedAddr, listenPort)
+	addr, ok := netip.AddrFromSlice(dhcp.AssignedAddr4[:])
+	if !ok {
+		failure("invalid IP address")
+	}
+
+	println("got IP:", addr.String())
+	listenAddr := netip.AddrPortFrom(addr, listenPort)
 
 	// Create and register TCP listener.
 	var listener tcp.Listener
 	err = listener.Reset(listenPort, tcpPool)
 	if err != nil {
 		failure("listener reset: " + err.Error())
 	}
-	err = lstack.RegisterListener(&listener)
+	err = lstack.RegisterListenerTCP(&listener)
 	if err != nil {
 		failure("listener register: " + err.Error())
 	}

go.mod

@@ -3,7 +3,7 @@ module tinygo.org/x/espradio
 go 1.24.4
 
 require (
-	github.com/soypat/lneto v0.1.1-0.20260425023453-aa77403a2b32
+	github.com/soypat/lneto v0.1.1-0.20260527165357-24d5d303bcb8
 	tinygo.org/x/drivers v0.35.0
 )
 

go.sum

@@ -1,5 +1,5 @@
-github.com/soypat/lneto v0.1.1-0.20260425023453-aa77403a2b32 h1:4fNa4mcNPVTMJ3Kzn+cS/LqmpXhKM9SiZ9Vgu/Ucq3c=
-github.com/soypat/lneto v0.1.1-0.20260425023453-aa77403a2b32/go.mod h1:Be5PjwoYukvHFiUXxpYi8+ppH2F/gw/vjGBvFdv+Ti8=
+github.com/soypat/lneto v0.1.1-0.20260527165357-24d5d303bcb8 h1:w0XI6cvLwkR+7FQa3zKiziBpRq+yrtBGCYbdThy8H5A=
+github.com/soypat/lneto v0.1.1-0.20260527165357-24d5d303bcb8/go.mod h1:Be5PjwoYukvHFiUXxpYi8+ppH2F/gw/vjGBvFdv+Ti8=
 github.com/soypat/natiu-mqtt v0.6.0 h1:ddrem9iAqFYtQOx2C7AhCizhPXXmGZs1T5fkvLroPO4=
 github.com/soypat/natiu-mqtt v0.6.0/go.mod h1:xEta+cwop9izVCW7xOx2W+ct9PRMqr0gNVkvBPnQTc4=
 tinygo.org/x/drivers v0.35.0 h1:cTK36tsI/S4Mg3hCPH0MBjV/ta7XKQ+wpvch4mVqgsE=

netlink/errors.go

@@ -0,0 +1,8 @@
+package netlink
+
+import "errors"
+
+var (
+	errInvalidIPAddress = errors.New("invalid IP address")
+	errEmptyHostname    = errors.New("empty hostname")
+)

netlink/netlink.go

@@ -1,7 +1,6 @@
 package netlink
 
 import (
-	"errors"
 	"net"
 	"net/netip"
 	"sync"
@@ -98,7 +97,7 @@ func (n *Esplink) NetConnect(params *nl.ConnectParams) error {
 		Hostname:     params.Ssid,
 		MaxUDPPorts:  2,
 		MaxTCPPorts:  1,
-		PassivePeers: 3,
+		PassivePeers: 255,
 	})
 	if err != nil {
 		if debug {
@@ -168,7 +167,7 @@ func (n *Esplink) GetHardwareAddr() (net.HardwareAddr, error) {
 	if debug {
 		println("GetHardwareAddr")
 	}
-	hw := n.netstack.LnetoStack().HardwareAddress()
+	hw := n.netstack.LnetoStack().HardwareAddr()
 	return hw[:], nil
 }
 
@@ -182,7 +181,7 @@ func (n *Esplink) GetHostByName(name string) (netip.Addr, error) {
 		if debug {
 			println("GetHostByName: empty name")
 		}
-		return netip.Addr{}, errors.New("empty name")
+		return netip.Addr{}, errEmptyHostname
 	} else if name[0] >= '0' && name[0] <= '9' {
 		// Special case to try for IPv4 addresses.
 		addr, err := netip.ParseAddr(name)
@@ -209,7 +208,12 @@ func (n *Esplink) Addr() (netip.Addr, error) {
 	if debug {
 		println("Addr")
 	}
-	return n.netstack.LnetoStack().Addr(), nil
+	addr4 := n.netstack.LnetoStack().Addr4()
+	addr, ok := netip.AddrFromSlice(addr4[:])
+	if !ok {
+		return netip.Addr{}, errInvalidIPAddress
+	}
+	return addr, nil
 }
 
 // Berkely Sockets-like interface, Go-ified.  See man page for socket(2), etc.

radio_esp32c3.go

@@ -63,8 +63,8 @@ func initHardware() error {
 // https://github.com/esp-rs/esp-wifi/blob/v0.2.0/esp-wifi/src/timer/riscv.rs#L28
 const ticksPerSecond = 16_000_000
 
-// C3 has only 321KB DRAM total; keep the arena pool small.
-const arenaPoolSize = 32 * 1024
+// C3 has only 321KB DRAM total, however 48KB is required for the arena pool for netlink.
+const arenaPoolSize = 48 * 1024
 
 // ESP32-C3 (RISC-V): call the blob's WiFi ISR directly from the
 // hardware interrupt handler.  On RISC-V the interrupt context can