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Add "IfTAPMode" configuration option to allow selecting TAP mode on supported platforms

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This commit is contained in:
Neil Alexander 2018-02-11 21:45:44 +00:00
parent 869997e4c5
commit e9bd98d213
6 changed files with 34 additions and 12 deletions
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8
src/yggdrasil/debug.go
View File

@ -205,14 +205,14 @@ func (c *Core) DEBUG_getAddr() *address {
return address_addrForNodeID(&c.dht.nodeID)
}
func (c *Core) DEBUG_startTun(ifname string) {
c.DEBUG_startTunWithMTU(ifname, 1280)
func (c *Core) DEBUG_startTun(ifname string, iftapmode bool) {
c.DEBUG_startTunWithMTU(ifname, iftapmode, 1280)
}
func (c *Core) DEBUG_startTunWithMTU(ifname string, mtu int) {
func (c *Core) DEBUG_startTunWithMTU(ifname string, iftapmode bool, mtu int) {
addr := c.DEBUG_getAddr()
straddr := fmt.Sprintf("%s/%v", net.IP(addr[:]).String(), 8*len(address_prefix))
err := c.tun.setup(ifname, straddr, mtu)
err := c.tun.setup(ifname, iftapmode, straddr, mtu)
if err != nil {
panic(err)
}

5
src/yggdrasil/tun_darwin.go
View File

@ -10,7 +10,10 @@ import "golang.org/x/sys/unix"
import water "github.com/songgao/water"
func (tun *tunDevice) setup(ifname string, addr string, mtu int) error {
func (tun *tunDevice) setup(ifname string, iftapmode bool, addr string, mtu int) error {
if iftapmode {
tun.core.log.Printf("TAP mode is not supported on this platform, defaulting to TUN")
}
config := water.Config{DeviceType: water.TUN}
iface, err := water.New(config)
if err != nil {

9
src/yggdrasil/tun_linux.go
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@ -9,8 +9,13 @@ import "strings"
import water "github.com/songgao/water"
func (tun *tunDevice) setup(ifname string, addr string, mtu int) error {
config := water.Config{DeviceType: water.TUN}
func (tun *tunDevice) setup(ifname string, iftapmode bool, addr string, mtu int) error {
var config water.Config
if iftapmode {
config = water.Config{DeviceType: water.TAP}
} else {
config = water.Config{DeviceType: water.TUN}
}
if ifname != "" && ifname != "auto" {
config.Name = ifname
}

9
src/yggdrasil/tun_other.go
View File

@ -9,8 +9,13 @@ import water "github.com/songgao/water"
// This is to catch unsupported platforms
// If your platform supports tun devices, you could try configuring it manually
func (tun *tunDevice) setup(ifname string, addr string, mtu int) error {
config := water.Config{DeviceType: water.TUN}
func (tun *tunDevice) setup(ifname string, iftapmode bool, addr string, mtu int) error {
var config water.Config
if iftapmode {
config = water.Config{DeviceType: water.TAP}
} else {
config = water.Config{DeviceType: water.TUN}
}
iface, err := water.New(config)
if err != nil {
panic(err)

5
src/yggdrasil/tun_windows.go
View File

@ -7,7 +7,10 @@ import "fmt"
// This is to catch Windows platforms
func (tun *tunDevice) setup(ifname string, addr string, mtu int) error {
func (tun *tunDevice) setup(ifname string, iftapmode bool, addr string, mtu int) error {
if !iftapmode {
tun.core.log.Printf("TUN mode is not supported on this platform, defaulting to TAP")
}
config := water.Config{DeviceType: water.TAP}
config.PlatformSpecificParams.ComponentID = "tap0901"
config.PlatformSpecificParams.Network = "169.254.0.1/32"

10
yggdrasil.go
View File

@ -39,6 +39,7 @@ type nodeConfig struct {
Multicast bool
LinkLocal string
IfName string
IfTAPMode bool
}
type node struct {
@ -104,7 +105,7 @@ func generateConfig() *nodeConfig {
spub, spriv := core.DEBUG_newSigKeys()
cfg := nodeConfig{}
cfg.Listen = "[::]:0"
cfg.AdminListen = "localhost:9001"
cfg.AdminListen = "[::1]:9001"
cfg.BoxPub = hex.EncodeToString(bpub[:])
cfg.BoxPriv = hex.EncodeToString(bpriv[:])
cfg.SigPub = hex.EncodeToString(spub[:])
@ -113,6 +114,11 @@ func generateConfig() *nodeConfig {
cfg.Multicast = true
cfg.LinkLocal = ""
cfg.IfName = "auto"
if runtime.GOOS == "windows" {
cfg.IfTAPMode = true
} else {
cfg.IfTAPMode = false
}
return &cfg
}
@ -258,7 +264,7 @@ func main() {
n.init(cfg, logger)
logger.Println("Starting tun...")
//n.core.DEBUG_startTun(cfg.IfName) // 1280, the smallest supported MTU
n.core.DEBUG_startTunWithMTU(cfg.IfName, 65535) // Largest supported MTU
n.core.DEBUG_startTunWithMTU(cfg.IfName, cfg.IfTAPMode, 65535) // Largest supported MTU
defer func() {
logger.Println("Closing...")
n.core.DEBUG_stopTun()