cwinfo/yggdrasil-go
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Refactor TUN setup (isolated config)

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This commit is contained in:
Neil Alexander
2022-09-03 12:20:57 +01:00
parent b1f61fb0a8
commit a7d06e048a
4 changed files with 57 additions and 40 deletions
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26
cmd/yggdrasil/main.go
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@ -38,7 +38,6 @@ import (
type node struct {
core *core.Core
config *config.NodeConfig
tuntap *tuntap.TunAdapter
multicast *multicast.Multicast
admin *admin.AdminSocket
@ -326,7 +325,7 @@ func run(args yggArgs, ctx context.Context, done chan struct{}) {
default:
}
n := &node{config: cfg}
n := &node{}
// Setup the Yggdrasil node itself.
{
@ -390,15 +389,22 @@ func run(args yggArgs, ctx context.Context, done chan struct{}) {
}
}
// Start the TUN/TAP interface
n.tuntap = &tuntap.TunAdapter{}
rwc := ipv6rwc.NewReadWriteCloser(n.core)
if err := n.tuntap.Init(rwc, cfg, logger, nil); err != nil {
logger.Errorln("An error occurred initialising TUN/TAP:", err)
} else if err := n.tuntap.Start(); err != nil {
logger.Errorln("An error occurred starting TUN/TAP:", err)
// Setup the TUN module.
{
options := []tuntap.SetupOption{
tuntap.InterfaceName(cfg.IfName),
tuntap.InterfaceMTU(cfg.IfMTU),
}
rwc := ipv6rwc.NewReadWriteCloser(n.core)
n.tuntap, err = tuntap.New(rwc, logger, options...)
if err != nil {
panic(err)
}
if n.admin != nil {
n.tuntap.SetupAdminHandlers(n.admin)
}
}
n.tuntap.SetupAdminHandlers(n.admin)
// Make some nice output that tells us what our IPv6 address and subnet are.
// This is just logged to stdout for the user.
address := n.core.Address()