2019-01-13 18:08:41 +00:00
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// +build darwin
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2019-03-28 16:13:14 +00:00
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package multicast
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2019-01-13 18:08:41 +00:00
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2019-03-01 19:26:50 +00:00
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/*
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#cgo CFLAGS: -x objective-c
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#cgo LDFLAGS: -framework Foundation
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#import <Foundation/Foundation.h>
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2019-03-10 18:05:27 +00:00
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NSNetServiceBrowser *serviceBrowser;
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void StartAWDLBrowsing() {
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if (serviceBrowser == nil) {
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serviceBrowser = [[NSNetServiceBrowser alloc] init];
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serviceBrowser.includesPeerToPeer = YES;
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}
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2019-03-01 19:26:50 +00:00
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[serviceBrowser searchForServicesOfType:@"_yggdrasil._tcp" inDomain:@""];
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}
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2019-03-10 18:05:27 +00:00
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void StopAWDLBrowsing() {
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if (serviceBrowser == nil) {
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return;
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}
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[serviceBrowser stop];
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}
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2019-03-01 19:26:50 +00:00
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*/
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import "C"
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2019-03-10 18:05:27 +00:00
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import (
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"syscall"
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"time"
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"golang.org/x/sys/unix"
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)
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var awdlGoroutineStarted bool
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2019-03-28 16:13:14 +00:00
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func (m *Multicast) multicastStarted() {
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2019-03-10 18:05:27 +00:00
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if awdlGoroutineStarted {
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return
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}
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awdlGoroutineStarted = true
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for {
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C.StopAWDLBrowsing()
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2019-06-28 23:12:56 +00:00
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for intf := range m.Interfaces() {
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if intf == "awdl0" {
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2019-06-20 14:11:55 +00:00
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m.log.Infoln("Multicast discovery is using AWDL discovery")
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2019-03-10 18:05:27 +00:00
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C.StartAWDLBrowsing()
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break
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}
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2019-03-01 19:26:50 +00:00
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}
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2019-03-10 18:05:27 +00:00
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time.Sleep(time.Minute)
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2019-03-01 19:26:50 +00:00
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}
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}
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2019-03-28 16:13:14 +00:00
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func (m *Multicast) multicastReuse(network string, address string, c syscall.RawConn) error {
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2019-01-13 18:08:41 +00:00
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var control error
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var reuseport error
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var recvanyif error
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control = c.Control(func(fd uintptr) {
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reuseport = unix.SetsockoptInt(int(fd), unix.SOL_SOCKET, unix.SO_REUSEPORT, 1)
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// sys/socket.h: #define SO_RECV_ANYIF 0x1104
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recvanyif = unix.SetsockoptInt(int(fd), syscall.SOL_SOCKET, 0x1104, 1)
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})
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switch {
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case reuseport != nil:
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return reuseport
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case recvanyif != nil:
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return recvanyif
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default:
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return control
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}
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}
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