adelorenzo/kilo
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

pkg/wireguard: allow configuring MTU (#215)

Browse Source 
This commit makes it possible to configure the MTU for the WireGuard
interface created by Kilo.

Signed-off-by: Lucas Servén Marín <lserven@gmail.com>
This commit is contained in:
Lucas Servén Marín
2021-07-16 14:23:11 +02:00
committed by GitHub
parent daecc2a0bc
commit 2c74a560c4
3 changed files with 10 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
pkg/mesh/mesh.go
View File

@@ -86,7 +86,7 @@ type Mesh struct {
}
// New returns a new Mesh instance.
func New(backend Backend, enc encapsulation.Encapsulator, granularity Granularity, hostname string, port uint32, subnet *net.IPNet, local, cni bool, cniPath, iface string, cleanUpIface bool, createIface bool, resyncPeriod time.Duration, logger log.Logger) (*Mesh, error) {
func New(backend Backend, enc encapsulation.Encapsulator, granularity Granularity, hostname string, port uint32, subnet *net.IPNet, local, cni bool, cniPath, iface string, cleanUpIface bool, createIface bool, mtu uint, resyncPeriod time.Duration, logger log.Logger) (*Mesh, error) {
if err := os.MkdirAll(kiloPath, 0700); err != nil {
return nil, fmt.Errorf("failed to create directory to store configuration: %v", err)
}
@@ -111,7 +111,7 @@ func New(backend Backend, enc encapsulation.Encapsulator, granularity Granularit
}
var kiloIface int
if createIface {
kiloIface, _, err = wireguard.New(iface)
kiloIface, _, err = wireguard.New(iface, mtu)
if err != nil {
return nil, fmt.Errorf("failed to create WireGuard interface: %v", err)
}

6
pkg/wireguard/wireguard.go
View File

@@ -24,6 +24,9 @@ import (
"github.com/vishvananda/netlink"
)
// DefaultMTU is the the default MTU used by WireGuard.
const DefaultMTU = 1420
type wgLink struct {
a netlink.LinkAttrs
t string
@@ -41,7 +44,7 @@ func (w wgLink) Type() string {
// If the interface exists, its index is returned.
// Otherwise, a new interface is created.
// The function also returns a boolean to indicate if the interface was created.
func New(name string) (int, bool, error) {
func New(name string, mtu uint) (int, bool, error) {
link, err := netlink.LinkByName(name)
if err == nil {
return link.Attrs().Index, false, nil
@@ -51,6 +54,7 @@ func New(name string) (int, bool, error) {
}
wl := wgLink{a: netlink.NewLinkAttrs(), t: "wireguard"}
wl.a.Name = name
wl.a.MTU = int(mtu)
if err := netlink.LinkAdd(wl); err != nil {
return 0, false, fmt.Errorf("failed to create interface %s: %v", name, err)
}