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Merge pull request #16 from neilalexander/notuntap
Allow setting IfName to 'none' to run without TUN/TAP
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commit
8a12a88447
@ -212,11 +212,13 @@ func (c *Core) DEBUG_startTun(ifname string, iftapmode bool) {
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func (c *Core) DEBUG_startTunWithMTU(ifname string, iftapmode bool, mtu int) {
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addr := c.DEBUG_getAddr()
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straddr := fmt.Sprintf("%s/%v", net.IP(addr[:]).String(), 8*len(address_prefix))
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err := c.tun.setup(ifname, iftapmode, straddr, mtu)
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if err != nil {
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panic(err)
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if ifname != "none" {
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err := c.tun.setup(ifname, iftapmode, straddr, mtu)
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if err != nil {
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panic(err)
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}
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go c.tun.read()
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}
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go c.tun.read()
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go c.tun.write()
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}
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@ -33,6 +33,9 @@ func (tun *tunDevice) init(core *Core) {
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func (tun *tunDevice) write() error {
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for {
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data := <-tun.recv
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if tun.iface == nil {
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continue
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}
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if tun.iface.IsTAP() {
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var frame ethernet.Frame
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frame.Prepare(
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@ -88,5 +91,8 @@ func (tun *tunDevice) read() error {
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}
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func (tun *tunDevice) close() error {
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if tun.iface == nil {
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return nil
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}
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return tun.iface.Close()
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}
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@ -264,7 +264,11 @@ func main() {
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logger.Println("Initializing...")
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n := node{}
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n.init(cfg, logger)
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logger.Println("Starting tun...")
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if cfg.IfName != "none" {
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logger.Println("Starting TUN/TAP...")
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} else {
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logger.Println("Not starting TUN/TAP")
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}
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//n.core.DEBUG_startTun(cfg.IfName) // 1280, the smallest supported MTU
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n.core.DEBUG_startTunWithMTU(cfg.IfName, cfg.IfTAPMode, cfg.IfMTU) // Largest supported MTU
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defer func() {
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