diff --git a/ipn/ipnlocal/peerapi.go b/ipn/ipnlocal/peerapi.go
index 3337a8b6c..64017c365 100644
--- a/ipn/ipnlocal/peerapi.go
+++ b/ipn/ipnlocal/peerapi.go
@@ -567,6 +567,9 @@ func (h *peerAPIHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
case "/v0/wol":
h.handleWakeOnLAN(w, r)
return
+ case "/v0/interfaces":
+ h.handleServeInterfaces(w, r)
+ return
}
who := h.peerUser.DisplayName
fmt.Fprintf(w, `
@@ -581,6 +584,40 @@ This is my Tailscale device. Your device is %v.
}
}
+func (h *peerAPIHandler) handleServeInterfaces(w http.ResponseWriter, r *http.Request) {
+ if !h.canDebug() {
+ http.Error(w, "denied; no debug access", http.StatusForbidden)
+ return
+ }
+ i, err := interfaces.GetList()
+ if err != nil {
+ http.Error(w, err.Error(), 500)
+ }
+
+ dr, err := interfaces.DefaultRoute()
+ if err != nil {
+ http.Error(w, err.Error(), 500)
+ }
+ w.Header().Set("Content-Type", "text/html; charset=utf-8")
+ fmt.Fprintln(w, "Interfaces
")
+ fmt.Fprintf(w, "Default route is %q(%d)
\n", dr.InterfaceName, dr.InterfaceIndex)
+
+ fmt.Fprintln(w, "")
+ fmt.Fprint(w, "")
+ for _, v := range []any{"Index", "Name", "MTU", "Flags", "Addrs"} {
+ fmt.Fprintf(w, "| %v | ", v)
+ }
+ fmt.Fprint(w, "
\n")
+ i.ForeachInterface(func(iface interfaces.Interface, ipps []netaddr.IPPrefix) {
+ fmt.Fprint(w, "")
+ for _, v := range []any{iface.Index, iface.Name, iface.MTU, iface.Flags, ipps} {
+ fmt.Fprintf(w, "| %v | ", v)
+ }
+ fmt.Fprint(w, "
\n")
+ })
+ fmt.Fprintln(w, "
")
+}
+
type incomingFile struct {
name string // "foo.jpg"
started time.Time