1 files changed, 28 insertions, 0 deletions
diff --git a/ipn/ipnlocal/extension_host.go b/ipn/ipnlocal/extension_host.go
index 125a23294..9498b78c2 100644
--- a/ipn/ipnlocal/extension_host.go
+++ b/ipn/ipnlocal/extension_host.go
@@ -8,6 +8,7 @@ import (
 	"errors"
 	"fmt"
 	"maps"
+	"net/netip"
 	"reflect"
 	"slices"
 	"strings"
@@ -124,6 +125,9 @@ type Backend interface {
 
 	NodeBackend() ipnext.NodeBackend
 
+	AdvertiseRoute(routes ...netip.Prefix) error
+	UnadvertiseRoute(routes ...netip.Prefix) error
+
 	ipnext.SafeBackend
 }
 
@@ -401,6 +405,30 @@ func (h *ExtensionHost) SendNotifyAsync(n ipn.Notify) {
 	})
 }
 
+// AdvertiseRoutesAsync implements [ipnext.Host].
+func (h *ExtensionHost) AdvertiseRoutesAsync(routes []netip.Prefix) {
+	if h == nil || len(routes) == 0 {
+		return
+	}
+	h.enqueueBackendOperation(func(b Backend) {
+		if err := b.AdvertiseRoute(routes...); err != nil {
+			h.logf("failed to advertise routes: %v", err)
+		}
+	})
+}
+
+// UnadvertiseRoutesAsync implements [ipnext.Host].
+func (h *ExtensionHost) UnadvertiseRoutesAsync(routes []netip.Prefix) {
+	if h == nil || len(routes) == 0 {
+		return
+	}
+	h.enqueueBackendOperation(func(b Backend) {
+		if err := b.UnadvertiseRoute(routes...); err != nil {
+			h.logf("failed to unadvertise routes: %v", err)
+		}
+	})
+}
+
 // NotifyProfileChange invokes registered profile state change callbacks
 // and updates the current profile and prefs in the host.
 // It strips private keys from the [ipn.Prefs] before preserving