+ // Prepare socket for link events
+ if ((nl_cb_rtnl_event = nl_cb_alloc(NL_CB_DEFAULT)))
+ nl_cb_set(nl_cb_rtnl_event, NL_CB_VALID, NL_CB_CUSTOM,
+ cb_rtnl_event, NULL);
+
+ if (nl_cb_rtnl_event && (sock_rtnl_event = nl_socket_alloc())) {
+ if (nl_connect(sock_rtnl_event, NETLINK_ROUTE)) {
+ nl_socket_free(sock_rtnl_event);
+ sock_rtnl_event = NULL;
+ }
+ // Receive network link events form kernel
+ nl_socket_add_membership(sock_rtnl_event, RTNLGRP_LINK);
+
+ // Synthesize initial link messages
+ struct nl_msg *m = nlmsg_alloc_simple(RTM_GETLINK, NLM_F_DUMP);
+ if (m && nlmsg_reserve(m, sizeof(struct ifinfomsg), 0)) {
+ nl_send_auto_complete(sock_rtnl_event, m);
+ nlmsg_free(m);
+ }
+
+#ifdef NLA_PUT_DATA
+ rtnl_event.fd = nl_socket_get_fd(sock_rtnl_event);
+#else
+ rtnl_event.fd = sock_rtnl_event->s_fd; // libnl-tiny hack...
+#endif
+ uloop_fd_add(&rtnl_event, ULOOP_READ | ULOOP_EDGE_TRIGGER);
+ }
+