Delete nets/nets.go

nets/nets.go was replaced by netif/netif.go

nets/nets.go

@@ -1,221 +0,0 @@
-package nets
-
-import (
-	"errors"
-	"net"
-	"net/netip"
-	"time"
-)
-
-//go:linkname UseStack net.useNetdev
-func UseStack(stack Stack)
-
-// GethostByName() errors
-var (
-	ErrHostUnknown = errors.New("host unknown")
-	ErrMalAddr     = errors.New("malformed address")
-)
-
-// Socket errors
-var (
-	ErrFamilyNotSupported   = errors.New("address family not supported")
-	ErrProtocolNotSupported = errors.New("socket protocol/type not supported")
-	ErrStartingDHCPClient   = errors.New("error starting DHPC client")
-	ErrNoMoreSockets        = errors.New("no more sockets")
-	ErrClosingSocket        = errors.New("error closing socket")
-)
-
-var (
-	ErrConnected         = errors.New("already connected")
-	ErrConnectFailed     = errors.New("connect failed")
-	ErrConnectTimeout    = errors.New("connect timed out")
-	ErrMissingSSID       = errors.New("missing WiFi SSID")
-	ErrAuthFailure       = errors.New("wifi authentication failure")
-	ErrAuthTypeNoGood    = errors.New("wifi authorization type not supported")
-	ErrConnectModeNoGood = errors.New("connect mode not supported")
-	ErrNotSupported      = errors.New("not supported")
-)
-
-const (
-	_AF_INET       = 0x2
-	_SOCK_STREAM   = 0x1
-	_SOCK_DGRAM    = 0x2
-	_SOL_SOCKET    = 0x1
-	_SO_KEEPALIVE  = 0x9
-	_SOL_TCP       = 0x6
-	_TCP_KEEPINTVL = 0x5
-	_IPPROTO_TCP   = 0x6
-	_IPPROTO_UDP   = 0x11
-	// Made up, not a real IP protocol number.  This is used to create a
-	// TLS socket on the device, assuming the device supports mbed TLS.
-	_IPPROTO_TLS = 0xFE
-	_F_SETFL     = 0x4
-)
-
-// Interface is the minimum interface that need be implemented by any network
-// device driver and is based on [net.Interface].
-type Interface interface {
-	// HardwareAddr6 returns the device's 6-byte [MAC address].
-	//
-	// [MAC address]: https://en.wikipedia.org/wiki/MAC_address
-	HardwareAddr6() ([6]byte, error)
-	// NetFlags returns the net.Flag values for the interface. It includes state of connection.
-	NetFlags() net.Flags
-	// MTU returns the maximum transmission unit size.
-	MTU() int
-	// Notify to register callback for network events. May not be supported for certain devices.
-	NetNotify(cb func(Event)) error
-}
-
-// InterfaceEthPoller is implemented by devices that send/receive ethernet packets.
-type InterfaceEthPoller interface {
-	Interface
-	// SendEth sends an Ethernet packet
-	SendEth(pkt []byte) error
-	// RecvEthHandle sets recieve Ethernet packet callback function
-	RecvEthHandle(func(pkt []byte) error)
-	// PollOne tries to receive one Ethernet packet and returns true if one was
-	PollOne() (bool, error)
-}
-
-// InterfaceWifi is implemented by a interface device that has the capacity
-// to connect to wifi networks.
-type InterfaceWifi interface {
-	Interface
-	// Connect device to network
-	NetConnect(params WifiParams) error
-	// Disconnect device from network
-	NetDisconnect()
-}
-
-// InterfaceEthPollWifi is implemented by devices that connect to wifi networks
-// and send/receive ethernet packets (OSI level 2).
-type InterfaceEthPollWifi interface {
-	InterfaceWifi
-	InterfaceEthPoller
-}
-
-type Stack interface {
-	// GetHostByName returns the IP address of either a hostname or IPv4
-	// address in standard dot notation
-	// GetHostByName(name string) (netip.Addr, error)
-
-	// Addr returns IP address assigned to the interface, either by
-	// DHCP or statically
-	Addr() (netip.Addr, error)
-
-	// Berkely Sockets-like interface, Go-ified.  See man page for socket(2), etc.
-	Socket(domain int, stype int, protocol int) (int, error)
-	Bind(sockfd int, ip netip.AddrPort) error
-	Connect(sockfd int, host string, ip netip.AddrPort) error
-	Listen(sockfd int, backlog int) error
-	Accept(sockfd int) (int, netip.AddrPort, error)
-	Send(sockfd int, buf []byte, flags int, deadline time.Time) (int, error)
-	Recv(sockfd int, buf []byte, flags int, deadline time.Time) (int, error)
-	Close(sockfd int) error
-	SetSockOpt(sockfd int, level int, opt int, value interface{}) error
-}
-
-// Should have UseResolver package level function that replaces the Go Resolver?
-type Resolver interface {
-	// GetHostByName returns the IP address of either a hostname or IPv4
-	// address in standard dot notation
-	GetHostByName(name string) (netip.Addr, error)
-}
-
-// StackWifi is returned by `Probe` function for devices that communicate
-// on the OSI level 4 (transport) layer.
-type StackWifi interface {
-	InterfaceWifi
-	Stack
-}
-
-type WifiParams struct {
-	// Connect mode
-	ConnectMode ConnectMode
-
-	// SSID of Wifi AP
-	SSID string
-
-	// Passphrase of Wifi AP
-	Passphrase string
-
-	// Wifi authorization type
-	Auth AuthType
-
-	// Wifi country code as two-char string.  E.g. "XX" for world-wide,
-	// "US" for USA, etc.
-	CountryCode string
-}
-
-type Event int
-
-// Network events
-const (
-	// The device's network connection is now UP
-	EventNetUp Event = iota
-	// The device's network connection is now DOWN
-	EventNetDown
-)
-
-type ConnectMode int
-
-// Connect modes
-const (
-	ConnectModeSTA = iota // Connect as Wifi station (default)
-	ConnectModeAP         // Connect as Wifi Access Point
-)
-
-type AuthType int
-
-// Wifi authorization types.  Used when setting up an access point, or
-// connecting to an access point
-const (
-	AuthTypeWPA2      = iota // WPA2 authorization (default)
-	AuthTypeOpen             // No authorization required (open)
-	AuthTypeWPA              // WPA authorization
-	AuthTypeWPA2Mixed        // WPA2/WPA mixed authorization
-)
-
-type WifiAutoconnectParams struct {
-	WifiParams
-
-	// Retries is how many attempts to connect before returning with a
-	// "Connect failed" error.  Zero means infinite retries.
-	Retries int // Probably should be implemented as a function
-
-	// Timeout duration for each connection attempt.  The default zero
-	// value means 10sec.
-	ConnectTimeout time.Duration
-
-	// Watchdog ticker duration.  On tick, the watchdog will check for
-	// downed connection or hardware fault and try to recover the
-	// connection.  Set to zero to disable watchodog.
-	WatchdogTimeout time.Duration
-}
-
-func StartWifiAutoconnect(dev InterfaceWifi, cfg WifiAutoconnectParams) error {
-	if dev == nil {
-		return ErrConnectModeNoGood
-	}
-	go func() {
-		// Wifi autoconnect algorithm in one place,
-		// no need to implement for every single netdever.
-	RECONNECT:
-		for i := 0; i < cfg.Retries; i++ {
-			err := dev.NetConnect(cfg.WifiParams)
-			if err != nil {
-				time.Sleep(cfg.ConnectTimeout)
-				goto RECONNECT
-			}
-			for cfg.WatchdogTimeout != 0 {
-				time.Sleep(cfg.WatchdogTimeout)
-				if dev.NetFlags()&net.FlagRunning == 0 {
-					i = 0
-					goto RECONNECT
-				}
-			}
-		}
-	}()
-	return nil
-}