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Implement ECMP for unsafe_routes (#1332)
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This commit is contained in:
dioss-Machiel
2025-03-24 23:15:59 +01:00
committed by GitHub
parent 3de36c99b6
commit f86953ca56
21 changed files with 690 additions and 82 deletions
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7
overlay/tun_openbsd.go
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@@ -17,6 +17,7 @@ import (
"github.com/gaissmai/bart"
"github.com/sirupsen/logrus"
"github.com/slackhq/nebula/config"
"github.com/slackhq/nebula/routing"
"github.com/slackhq/nebula/util"
)
@@ -25,7 +26,7 @@ type tun struct {
vpnNetworks []netip.Prefix
MTU int
Routes atomic.Pointer[[]Route]
routeTree atomic.Pointer[bart.Table[netip.Addr]]
routeTree atomic.Pointer[bart.Table[routing.Gateways]]
l *logrus.Logger
io.ReadWriteCloser
@@ -158,7 +159,7 @@ func (t *tun) Activate() error {
return nil
}
func (t *tun) RouteFor(ip netip.Addr) netip.Addr {
func (t *tun) RoutesFor(ip netip.Addr) routing.Gateways {
r, _ := t.routeTree.Load().Lookup(ip)
return r
}
@@ -166,7 +167,7 @@ func (t *tun) RouteFor(ip netip.Addr) netip.Addr {
func (t *tun) addRoutes(logErrors bool) error {
routes := *t.Routes.Load()
for _, r := range routes {
if !r.Via.IsValid() || !r.Install {
if len(r.Via) == 0 || !r.Install {
// We don't allow route MTUs so only install routes with a via
continue
}