Update CI to use Go 1.17, produce Apple Silicon builds (closes #844)

.circleci/config.yml

@@ -5,7 +5,7 @@ version: 2.1
 jobs:
   lint:
     docker:
-      - image: circleci/golang:1.16
+      - image: circleci/golang:1.17
 
     steps:
       - checkout
@@ -23,7 +23,7 @@ jobs:
 
   build-linux:
     docker:
-      - image: circleci/golang:1.16
+      - image: circleci/golang:1.17
 
     steps:
       - checkout
@@ -124,11 +124,11 @@ jobs:
               echo -e "Host *\n\tStrictHostKeyChecking no\n" >> ~/.ssh/config
 
       - run:
-          name: Install Go 1.16
+          name: Install Go 1.17
           command: |
               cd /tmp
-              curl -LO https://dl.google.com/go/go1.16.darwin-amd64.pkg
-              sudo installer -pkg /tmp/go1.16.darwin-amd64.pkg -target /
+              curl -LO https://dl.google.com/go/go1.17.darwin-amd64.pkg
+              sudo installer -pkg /tmp/go1.17.darwin-amd64.pkg -target /
 
       #- run:
       #    name: Install Gomobile
@@ -142,11 +142,15 @@ jobs:
               GO111MODULE=on GOOS=darwin GOARCH=amd64 ./build
               cp yggdrasil /tmp/upload/$CINAME-$CIVERSION-darwin-amd64
               cp yggdrasilctl /tmp/upload/$CINAME-$CIVERSION-yggdrasilctl-darwin-amd64;
+              GO111MODULE=on GOOS=darwin GOARCH=arm64 ./build
+              cp yggdrasil /tmp/upload/$CINAME-$CIVERSION-darwin-arm64
+              cp yggdrasilctl /tmp/upload/$CINAME-$CIVERSION-yggdrasilctl-darwin-arm64;
 
       - run:
           name: Build for macOS (.pkg format)
           command: |
               PKGARCH=amd64 sh contrib/macos/create-pkg.sh
+              PKGARCH=arm64 sh contrib/macos/create-pkg.sh
               mv *.pkg /tmp/upload/
 
       #- run:
@@ -164,7 +168,7 @@ jobs:
 
   build-other:
     docker:
-      - image: circleci/golang:1.16
+      - image: circleci/golang:1.17
 
     steps:
       - checkout

contrib/macos/create-pkg.sh

@@ -15,6 +15,10 @@ command -v mkbom >/dev/null 2>&1 || (
   sudo make install || (echo "Failed to build mkbom"; exit 1)
 )
 
+# Build Yggdrasil
+echo "running GO111MODULE=on GOOS=darwin GOARCH=${PKGARCH-amd64} ./build"
+GO111MODULE=on GOOS=darwin GOARCH=${PKGARCH-amd64} ./build
+
 # Check if we can find the files we need - they should
 # exist if you are running this script from the root of
 # the yggdrasil-go repo and you have ran ./build

src/multicast/multicast_darwin.go

@@ -1,49 +1,17 @@
-//go:build darwin
-// +build darwin
+//go:build !cgo && (darwin || ios)
+// +build !cgo
+// +build darwin ios
 
 package multicast
 
-/*
-#cgo CFLAGS: -x objective-c
-#cgo LDFLAGS: -framework Foundation
-#import <Foundation/Foundation.h>
-NSNetServiceBrowser *serviceBrowser;
-void StartAWDLBrowsing() {
-	if (serviceBrowser == nil) {
-		serviceBrowser = [[NSNetServiceBrowser alloc] init];
-		serviceBrowser.includesPeerToPeer = YES;
-	}
-	[serviceBrowser searchForServicesOfType:@"_yggdrasil._tcp" inDomain:@""];
-}
-void StopAWDLBrowsing() {
-	if (serviceBrowser == nil) {
-		return;
-	}
-	[serviceBrowser stop];
-}
-*/
-import "C"
 import (
 	"syscall"
-	"time"
 
 	"golang.org/x/sys/unix"
 )
 
 func (m *Multicast) _multicastStarted() {
-	if !m.isOpen {
-		return
-	}
-	C.StopAWDLBrowsing()
-	for intf := range m._interfaces {
-		if intf == "awdl0" {
-			C.StartAWDLBrowsing()
-			break
-		}
-	}
-	time.AfterFunc(time.Minute, func() {
-		m.Act(nil, m._multicastStarted)
-	})
+
 }
 
 func (m *Multicast) multicastReuse(network string, address string, c syscall.RawConn) error {

src/multicast/multicast_darwin_cgo.go

@@ -0,0 +1,69 @@
+//go:build (darwin && cgo) || (ios && cgo)
+// +build darwin,cgo ios,cgo
+
+package multicast
+
+/*
+#cgo CFLAGS: -x objective-c
+#cgo LDFLAGS: -framework Foundation
+#import <Foundation/Foundation.h>
+NSNetServiceBrowser *serviceBrowser;
+void StartAWDLBrowsing() {
+	if (serviceBrowser == nil) {
+		serviceBrowser = [[NSNetServiceBrowser alloc] init];
+		serviceBrowser.includesPeerToPeer = YES;
+	}
+	[serviceBrowser searchForServicesOfType:@"_yggdrasil._tcp" inDomain:@""];
+}
+void StopAWDLBrowsing() {
+	if (serviceBrowser == nil) {
+		return;
+	}
+	[serviceBrowser stop];
+}
+*/
+import "C"
+import (
+	"syscall"
+	"time"
+
+	"golang.org/x/sys/unix"
+)
+
+func (m *Multicast) _multicastStarted() {
+	if !m.isOpen {
+		return
+	}
+	C.StopAWDLBrowsing()
+	for intf := range m._interfaces {
+		if intf == "awdl0" {
+			C.StartAWDLBrowsing()
+			break
+		}
+	}
+	time.AfterFunc(time.Minute, func() {
+		m.Act(nil, m._multicastStarted)
+	})
+}
+
+func (m *Multicast) multicastReuse(network string, address string, c syscall.RawConn) error {
+	var control error
+	var reuseport error
+	var recvanyif error
+
+	control = c.Control(func(fd uintptr) {
+		reuseport = unix.SetsockoptInt(int(fd), unix.SOL_SOCKET, unix.SO_REUSEPORT, 1)
+
+		// sys/socket.h: #define	SO_RECV_ANYIF	0x1104
+		recvanyif = unix.SetsockoptInt(int(fd), syscall.SOL_SOCKET, 0x1104, 1)
+	})
+
+	switch {
+	case reuseport != nil:
+		return reuseport
+	case recvanyif != nil:
+		return recvanyif
+	default:
+		return control
+	}
+}

src/multicast/multicast_other.go

@@ -1,5 +1,5 @@
-//go:build !linux && !darwin && !netbsd && !freebsd && !openbsd && !dragonflybsd && !windows
-// +build !linux,!darwin,!netbsd,!freebsd,!openbsd,!dragonflybsd,!windows
+//go:build !linux && !darwin && !ios && !netbsd && !freebsd && !openbsd && !dragonflybsd && !windows
+// +build !linux,!darwin,!ios,!netbsd,!freebsd,!openbsd,!dragonflybsd,!windows
 
 package multicast