+#if defined(__linux)
+static void netlink_io_handler(event_loop_t *loop, void *data, int flags) {
+ (void)flags;
+ static time_t prev_update;
+ meshlink_handle_t *mesh = data;
+
+ struct {
+ struct nlmsghdr nlm;
+ char data[2048];
+ } msg;
+
+ while(true) {
+ 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 Netlink socket failed: %s\n", strerror(errno));
+ io_set(loop, &mesh->pfroute_io, 0);
+ }
+
+ if((size_t)result < sizeof(msg.nlm)) {
+ logger(mesh, MESHLINK_ERROR, "Invalid Netlink message\n");
+ break;
+ }
+
+ switch(msg.nlm.nlmsg_type) {
+ case RTM_NEWLINK:
+ case RTM_DELLINK:
+ 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;
+ }
+ }
+}
+#elif defined(RTM_NEWADDR)