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feature: add feature to determine when to run wireguard userspace implementation or native one (linux)

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This commit is contained in:
braginini
2021-06-23 16:11:54 +02:00
parent dd72a01ecf
commit 4216cd2986
5 changed files with 97 additions and 91 deletions
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88
iface/iface_linux.go
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@ -9,50 +9,56 @@ import (
// Create Creates a new Wireguard interface, sets a given IP and brings it up.
// Will reuse an existing one.
func Create(iface string, address string) error {
attrs := netlink.NewLinkAttrs()
attrs.Name = iface
link := wgLink{
attrs: &attrs,
if WireguardModExists() {
attrs := netlink.NewLinkAttrs()
attrs.Name = iface
link := wgLink{
attrs: &attrs,
}
log.Debugf("adding device: %s", iface)
err := netlink.LinkAdd(&link)
if os.IsExist(err) {
log.Infof("interface %s already exists. Will reuse.", iface)
} else if err != nil {
return err
}
log.Debugf("adding address %s to interface: %s", address, iface)
addr, _ := netlink.ParseAddr(address)
err = netlink.AddrAdd(&link, addr)
if os.IsExist(err) {
log.Infof("interface %s already has the address: %s", iface, address)
} else if err != nil {
return err
}
err = assignAddr(address, iface)
if err != nil {
return err
}
// todo do a discovery
log.Debugf("setting MTU: %s", iface)
err = netlink.LinkSetMTU(&link, defaultMTU)
if err != nil {
log.Errorf("error setting MTU on interface: %s", iface)
return err
}
log.Debugf("bringing up interface: %s", iface)
err = netlink.LinkSetUp(&link)
if err != nil {
log.Errorf("error bringing up interface: %s", iface)
return err
}
return nil
} else {
return CreateInUserspace(iface, address)
}
log.Debugf("adding device: %s", iface)
err := netlink.LinkAdd(&link)
if os.IsExist(err) {
log.Infof("interface %s already exists. Will reuse.", iface)
} else if err != nil {
return err
}
log.Debugf("adding address %s to interface: %s", address, iface)
addr, _ := netlink.ParseAddr(address)
err = netlink.AddrAdd(&link, addr)
if os.IsExist(err) {
log.Infof("interface %s already has the address: %s", iface, address)
} else if err != nil {
return err
}
err = assignAddr(address, iface)
if err != nil {
return err
}
// todo do a discovery
log.Debugf("setting MTU: %s", iface)
err = netlink.LinkSetMTU(&link, defaultMTU)
if err != nil {
log.Errorf("error setting MTU on interface: %s", iface)
return err
}
log.Debugf("bringing up interface: %s", iface)
err = netlink.LinkSetUp(&link)
if err != nil {
log.Errorf("error bringing up interface: %s", iface)
return err
}
return nil
}
// assignAddr Adds IP address to the tunnel interface