Merge pull request #155 from neilalexander/platformdefaults

Centralise platform defaults

src/yggdrasil/admin.go

@@ -13,6 +13,8 @@ import (
 	"strings"
 	"sync/atomic"
 	"time"
+
+	"yggdrasil/defaults"
 )
 
 // TODO: Add authentication
@@ -155,15 +157,15 @@ func (a *admin) init(c *Core, listenaddr string) {
 	})
 	a.addHandler("setTunTap", []string{"name", "[tap_mode]", "[mtu]"}, func(in admin_info) (admin_info, error) {
 		// Set sane defaults
-		iftapmode := getDefaults().defaultIfTAPMode
-		ifmtu := getDefaults().defaultIfMTU
+		iftapmode := defaults.GetDefaults().DefaultIfTAPMode
+		ifmtu := defaults.GetDefaults().DefaultIfMTU
 		// Has TAP mode been specified?
 		if tap, ok := in["tap_mode"]; ok {
 			iftapmode = tap.(bool)
 		}
 		// Check we have enough params for MTU
 		if mtu, ok := in["mtu"]; ok {
-			if mtu.(float64) >= 1280 && ifmtu <= getDefaults().maximumIfMTU {
+			if mtu.(float64) >= 1280 && ifmtu <= defaults.GetDefaults().MaximumIfMTU {
 				ifmtu = int(in["mtu"].(float64))
 			}
 		}

src/yggdrasil/config/config.go

@@ -3,7 +3,7 @@ package config
 // NodeConfig defines all configuration values needed to run a signle yggdrasil node
 type NodeConfig struct {
 	Listen                      string   `comment:"Listen address for peer connections. Default is to listen for all\nTCP connections over IPv4 and IPv6 with a random port."`
-	AdminListen                 string   `comment:"Listen address for admin connections Default is to listen for local\nconnections only on TCP port 9001."`
+	AdminListen                 string   `comment:"Listen address for admin connections Default is to listen for local\nconnections either on TCP/9001 or a UNIX socket depending on your\nplatform. Use this value for yggdrasilctl -endpoint=X."`
 	Peers                       []string `comment:"List of connection strings for static peers in URI format, i.e.\ntcp://a.b.c.d:e or socks://a.b.c.d:e/f.g.h.i:j"`
 	AllowedEncryptionPublicKeys []string `comment:"List of peer encryption public keys to allow or incoming TCP\nconnections from. If left empty/undefined then all connections\nwill be allowed by default."`
 	EncryptionPublicKey         string   `comment:"Your public encryption key. Your peers may ask you for this to put\ninto their AllowedEncryptionPublicKeys configuration."`

src/yggdrasil/core.go

@@ -9,6 +9,7 @@ import (
 	"regexp"
 
 	"yggdrasil/config"
+	"yggdrasil/defaults"
 )
 
 // The Core object represents the Yggdrasil node. You should create a Core
@@ -197,26 +198,31 @@ func (c *Core) AddAllowedEncryptionPublicKey(boxStr string) error {
 	return c.admin.addAllowedEncryptionPublicKey(boxStr)
 }
 
+// Gets the default admin listen address for your platform.
+func (c *Core) GetAdminDefaultListen() string {
+	return defaults.GetDefaults().DefaultAdminListen
+}
+
 // Gets the default TUN/TAP interface name for your platform.
 func (c *Core) GetTUNDefaultIfName() string {
-	return getDefaults().defaultIfName
+	return defaults.GetDefaults().DefaultIfName
 }
 
 // Gets the default TUN/TAP interface MTU for your platform. This can be as high
 // as 65535, depending on platform, but is never lower than 1280.
 func (c *Core) GetTUNDefaultIfMTU() int {
-	return getDefaults().defaultIfMTU
+	return defaults.GetDefaults().DefaultIfMTU
 }
 
 // Gets the maximum supported TUN/TAP interface MTU for your platform. This
 // can be as high as 65535, depending on platform, but is never lower than 1280.
 func (c *Core) GetTUNMaximumIfMTU() int {
-	return getDefaults().maximumIfMTU
+	return defaults.GetDefaults().MaximumIfMTU
 }
 
 // Gets the default TUN/TAP interface mode for your platform.
 func (c *Core) GetTUNDefaultIfTAPMode() bool {
-	return getDefaults().defaultIfTAPMode
+	return defaults.GetDefaults().DefaultIfTAPMode
 }
 
 // Gets the current TUN/TAP interface name.

src/yggdrasil/defaults/defaults.go

@@ -0,0 +1,15 @@
+package defaults
+
+// Defines which parameters are expected by default for configuration on a
+// specific platform. These values are populated in the relevant defaults_*.go
+// for the platform being targeted. They must be set.
+type platformDefaultParameters struct {
+	// Admin socket
+	DefaultAdminListen	string
+
+	// TUN/TAP
+	MaximumIfMTU     int
+	DefaultIfMTU     int
+	DefaultIfName    string
+	DefaultIfTAPMode bool
+}

src/yggdrasil/defaults/defaults_darwin.go

@@ -0,0 +1,18 @@
+// +build darwin
+
+package defaults
+
+// Sane defaults for the macOS/Darwin platform. The "default" options may be
+// may be replaced by the running configuration.
+func GetDefaults() platformDefaultParameters {
+	return platformDefaultParameters{
+    // Admin
+		DefaultAdminListen: "tcp://localhost:9001",
+
+    // TUN/TAP
+    MaximumIfMTU:     65535,
+    DefaultIfMTU:     65535,
+    DefaultIfName:    "auto",
+    DefaultIfTAPMode: false,
+	}
+}

src/yggdrasil/defaults/defaults_freebsd.go

@@ -0,0 +1,18 @@
+// +build freebsd
+
+package defaults
+
+// Sane defaults for the BSD platforms. The "default" options may be
+// may be replaced by the running configuration.
+func GetDefaults() platformDefaultParameters {
+	return platformDefaultParameters{
+		// Admin
+		DefaultAdminListen: "tcp://localhost:9001",
+
+		// TUN/TAP
+		MaximumIfMTU:     32767,
+		DefaultIfMTU:     32767,
+		DefaultIfName:    "/dev/tap0",
+		DefaultIfTAPMode: true,
+	}
+}

src/yggdrasil/defaults/defaults_linux.go

@@ -0,0 +1,18 @@
+// +build linux
+
+package defaults
+
+// Sane defaults for the Linux platform. The "default" options may be
+// may be replaced by the running configuration.
+func GetDefaults() platformDefaultParameters {
+	return platformDefaultParameters{
+    // Admin
+		DefaultAdminListen: "tcp://localhost:9001",
+
+    // TUN/TAP
+    MaximumIfMTU:     65535,
+    DefaultIfMTU:     65535,
+    DefaultIfName:    "auto",
+    DefaultIfTAPMode: false,
+	}
+}

src/yggdrasil/defaults/defaults_netbsd.go

@@ -0,0 +1,18 @@
+// +build netbsd
+
+package defaults
+
+// Sane defaults for the BSD platforms. The "default" options may be
+// may be replaced by the running configuration.
+func GetDefaults() platformDefaultParameters {
+	return platformDefaultParameters{
+		// Admin
+		DefaultAdminListen: "tcp://localhost:9001",
+
+		// TUN/TAP
+		MaximumIfMTU:     9000,
+		DefaultIfMTU:     9000,
+		DefaultIfName:    "/dev/tap0",
+		DefaultIfTAPMode: true,
+	}
+}

src/yggdrasil/defaults/defaults_openbsd.go

@@ -0,0 +1,18 @@
+// +build openbsd
+
+package defaults
+
+// Sane defaults for the BSD platforms. The "default" options may be
+// may be replaced by the running configuration.
+func GetDefaults() platformDefaultParameters {
+	return platformDefaultParameters{
+		// Admin
+		DefaultAdminListen: "tcp://localhost:9001",
+
+		// TUN/TAP
+		MaximumIfMTU:     16384,
+		DefaultIfMTU:     16384,
+		DefaultIfName:    "/dev/tap0",
+		DefaultIfTAPMode: true,
+	}
+}

src/yggdrasil/defaults/defaults_other.go

@@ -0,0 +1,18 @@
+// +build !linux,!darwin,!windows,!openbsd,!freebsd,!netbsd
+
+package defaults
+
+// Sane defaults for the other platforms. The "default" options may be
+// may be replaced by the running configuration.
+func GetDefaults() platformDefaultParameters {
+	return platformDefaultParameters{
+    // Admin
+		DefaultAdminListen: "tcp://localhost:9001",
+
+    // TUN/TAP
+    MaximumIfMTU:     65535,
+    DefaultIfMTU:     65535,
+    DefaultIfName:    "none",
+    DefaultIfTAPMode: false,
+	}
+}

src/yggdrasil/defaults/defaults_windows.go

@@ -0,0 +1,18 @@
+// +build windows
+
+package defaults
+
+// Sane defaults for the Windows platform. The "default" options may be
+// may be replaced by the running configuration.
+func GetDefaults() platformDefaultParameters {
+	return platformDefaultParameters{
+    // Admin
+		DefaultAdminListen: "tcp://localhost:9001",
+
+    // TUN/TAP
+    MaximumIfMTU:     65535,
+    DefaultIfMTU:     65535,
+    DefaultIfName:    "auto",
+    DefaultIfTAPMode: true,
+	}
+}

src/yggdrasil/tun.go

@@ -3,6 +3,8 @@ package yggdrasil
 // This manages the tun driver to send/recv packets to/from applications
 
 import (
+	"yggdrasil/defaults"
+
 	"github.com/songgao/packets/ethernet"
 	"github.com/yggdrasil-network/water"
 )
@@ -20,21 +22,11 @@ type tunDevice struct {
 	iface  *water.Interface
 }
 
-// Defines which parameters are expected by default for a TUN/TAP adapter on a
-// specific platform. These values are populated in the relevant tun_*.go for
-// the platform being targeted. They must be set.
-type tunDefaultParameters struct {
-	maximumIfMTU     int
-	defaultIfMTU     int
-	defaultIfName    string
-	defaultIfTAPMode bool
-}
-
 // Gets the maximum supported MTU for the platform based on the defaults in
-// getDefaults().
+// defaults.GetDefaults().
 func getSupportedMTU(mtu int) int {
-	if mtu > getDefaults().maximumIfMTU {
-		return getDefaults().maximumIfMTU
+	if mtu > defaults.GetDefaults().MaximumIfMTU {
+		return defaults.GetDefaults().MaximumIfMTU
 	}
 	return mtu
 }

src/yggdrasil/tun_darwin.go

@@ -13,17 +13,6 @@ import (
 	water "github.com/yggdrasil-network/water"
 )
 
-// Sane defaults for the Darwin/macOS platform. The "default" options may be
-// may be replaced by the running configuration.
-func getDefaults() tunDefaultParameters {
-	return tunDefaultParameters{
-		maximumIfMTU:     65535,
-		defaultIfMTU:     65535,
-		defaultIfName:    "auto",
-		defaultIfTAPMode: false,
-	}
-}
-
 // Configures the "utun" adapter with the correct IPv6 address and MTU.
 func (tun *tunDevice) setup(ifname string, iftapmode bool, addr string, mtu int) error {
 	if iftapmode {

src/yggdrasil/tun_freebsd.go

@@ -1,12 +0,0 @@
-package yggdrasil
-
-// Sane defaults for the FreeBSD platform. The "default" options may be
-// may be replaced by the running configuration.
-func getDefaults() tunDefaultParameters {
-	return tunDefaultParameters{
-		maximumIfMTU:     32767,
-		defaultIfMTU:     32767,
-		defaultIfName:    "/dev/tap0",
-		defaultIfTAPMode: true,
-	}
-}

src/yggdrasil/tun_linux.go

@@ -12,17 +12,6 @@ import (
 	water "github.com/yggdrasil-network/water"
 )
 
-// Sane defaults for the Linux platform. The "default" options may be
-// may be replaced by the running configuration.
-func getDefaults() tunDefaultParameters {
-	return tunDefaultParameters{
-		maximumIfMTU:     65535,
-		defaultIfMTU:     65535,
-		defaultIfName:    "auto",
-		defaultIfTAPMode: false,
-	}
-}
-
 // Configures the TAP adapter with the correct IPv6 address and MTU.
 func (tun *tunDevice) setup(ifname string, iftapmode bool, addr string, mtu int) error {
 	var config water.Config

src/yggdrasil/tun_netbsd.go

@@ -1,12 +0,0 @@
-package yggdrasil
-
-// Sane defaults for the NetBSD platform. The "default" options may be
-// may be replaced by the running configuration.
-func getDefaults() tunDefaultParameters {
-	return tunDefaultParameters{
-		maximumIfMTU:     9000,
-		defaultIfMTU:     9000,
-		defaultIfName:    "/dev/tap0",
-		defaultIfTAPMode: true,
-	}
-}

src/yggdrasil/tun_openbsd.go

@@ -1,12 +0,0 @@
-package yggdrasil
-
-// Sane defaults for the OpenBSD platform. The "default" options may be
-// may be replaced by the running configuration.
-func getDefaults() tunDefaultParameters {
-	return tunDefaultParameters{
-		maximumIfMTU:     16384,
-		defaultIfMTU:     16384,
-		defaultIfName:    "/dev/tap0",
-		defaultIfTAPMode: true,
-	}
-}

src/yggdrasil/tun_other.go

@@ -7,17 +7,6 @@ import water "github.com/yggdrasil-network/water"
 // This is to catch unsupported platforms
 // If your platform supports tun devices, you could try configuring it manually
 
-// These are sane defaults for any platform that has not been matched by one of
-// the other tun_*.go files.
-func getDefaults() tunDefaultParameters {
-	return tunDefaultParameters{
-		maximumIfMTU:     65535,
-		defaultIfMTU:     65535,
-		defaultIfName:    "none",
-		defaultIfTAPMode: false,
-	}
-}
-
 // Creates the TUN/TAP adapter, if supported by the Water library. Note that
 // no guarantees are made at this point on an unsupported platform.
 func (tun *tunDevice) setup(ifname string, iftapmode bool, addr string, mtu int) error {

src/yggdrasil/tun_windows.go

@@ -10,17 +10,6 @@ import (
 
 // This is to catch Windows platforms
 
-// Sane defaults for the Windows platform. The "default" options may be
-// may be replaced by the running configuration.
-func getDefaults() tunDefaultParameters {
-	return tunDefaultParameters{
-		maximumIfMTU:     65535,
-		defaultIfMTU:     65535,
-		defaultIfName:    "auto",
-		defaultIfTAPMode: true,
-	}
-}
-
 // Configures the TAP adapter with the correct IPv6 address and MTU. On Windows
 // we don't make use of a direct operating system API to do this - we instead
 // delegate the hard work to "netsh".

yggdrasil.go

@@ -23,6 +23,7 @@ import (
 
 	"yggdrasil"
 	"yggdrasil/config"
+	"yggdrasil/defaults"
 )
 
 type nodeConfig = config.NodeConfig
@@ -53,7 +54,7 @@ func generateConfig(isAutoconf bool) *nodeConfig {
 		r1 := rand.New(rand.NewSource(time.Now().UnixNano()))
 		cfg.Listen = fmt.Sprintf("[::]:%d", r1.Intn(65534-32768)+32768)
 	}
-	cfg.AdminListen = "localhost:9001"
+	cfg.AdminListen = defaults.GetDefaults().DefaultAdminListen
 	cfg.EncryptionPublicKey = hex.EncodeToString(bpub[:])
 	cfg.EncryptionPrivateKey = hex.EncodeToString(bpriv[:])
 	cfg.SigningPublicKey = hex.EncodeToString(spub[:])
@@ -61,9 +62,9 @@ func generateConfig(isAutoconf bool) *nodeConfig {
 	cfg.Peers = []string{}
 	cfg.AllowedEncryptionPublicKeys = []string{}
 	cfg.MulticastInterfaces = []string{".*"}
-	cfg.IfName = core.GetTUNDefaultIfName()
-	cfg.IfMTU = core.GetTUNDefaultIfMTU()
-	cfg.IfTAPMode = core.GetTUNDefaultIfTAPMode()
+	cfg.IfName = defaults.GetDefaults().DefaultIfName
+	cfg.IfMTU = defaults.GetDefaults().DefaultIfMTU
+	cfg.IfTAPMode = defaults.GetDefaults().DefaultIfTAPMode
 
 	return &cfg
 }

yggdrasilctl.go

@@ -9,10 +9,12 @@ import "encoding/json"
 import "strconv"
 import "os"
 
+import "yggdrasil/defaults"
+
 type admin_info map[string]interface{}
 
 func main() {
-	server := flag.String("endpoint", "localhost:9001", "Admin socket endpoint")
+	server := flag.String("endpoint", defaults.GetDefaults().DefaultAdminListen, "Admin socket endpoint")
 	injson := flag.Bool("json", false, "Output in JSON format")
 	flag.Parse()
 	args := flag.Args()