+#ifdef RTM_NEWADDR
+static void pfroute_io_handler(event_loop_t *loop, void *data, int flags) {
+ (void)flags;
+ static time_t prev_update;
+ meshlink_handle_t *mesh = data;
+
+ struct {
+ struct rt_msghdr rtm;
+ char data[2048];
+ } msg;
+
+ while(true) {
+ msg.rtm.rtm_version = 0;
+ ssize_t result = recv(mesh->pfroute_io.fd, &msg, sizeof(msg), MSG_DONTWAIT);
+
+ if(result <= 0) {
+ if(result == 0 || errno == EAGAIN || errno == EINTR) {
+ break;
+ }
+
+ logger(mesh, MESHLINK_ERROR, "Reading from PFROUTE socket failed: %s\n", strerror(errno));
+ io_set(loop, &mesh->pfroute_io, 0);
+ }
+
+ if(msg.rtm.rtm_version != RTM_VERSION) {
+ logger(mesh, MESHLINK_ERROR, "Invalid PFROUTE message version\n");
+ break;
+ }
+
+ switch(msg.rtm.rtm_type) {
+ case RTM_IFINFO:
+ case RTM_NEWADDR:
+ case RTM_DELADDR:
+ if(loop->now.tv_sec > prev_update + 5) {
+ prev_update = loop->now.tv_sec;
+ handle_network_change(mesh, 1);
+ }
+
+ break;
+
+ default:
+ break;
+ }
+ }
+}
+#endif
+