bsd/net/if_gif.c

280 	struct gif_softc	*sc = ifnet_softc(ifp);
282 	sc->tap_mode = mode;
283 	sc->tap_callback = callback;
292 	struct gif_softc	*sc = NULL;
300 	sc = _MALLOC(sizeof(struct gif_softc), M_DEVBUF, M_WAITOK);
301 	if (sc == NULL) {
305 	bzero(sc, sizeof(struct gif_softc));
308 	snprintf(sc->gif_ifname, sizeof(sc->gif_ifname), "%s%d",
312 	gif_init.uniqueid = sc->gif_ifname;
313 	gif_init.uniqueid_len = strlen(sc->gif_ifname);
322 	gif_init.softc = sc;
326 	result = ifnet_allocate(&gif_init, &sc->gif_if);
329 		_FREE(sc, M_DEVBUF);
333 	sc->encap_cookie4 = sc->encap_cookie6 = NULL;
335 	sc->encap_cookie4 = encap_attach_func(AF_INET, -1,
336 			gif_encapcheck, &in_gif_protosw, sc);
337 	if (sc->encap_cookie4 == NULL) {
338 		printf("%s: unable to attach encap4\n", if_name(sc->gif_if));
339 		ifnet_release(sc->gif_if);
340 		FREE(sc, M_DEVBUF);
345 	sc->encap_cookie6 = encap_attach_func(AF_INET6, -1,
346 	    gif_encapcheck, (struct protosw*)&in6_gif_protosw, sc);
347 	if (sc->encap_cookie6 == NULL) {
348 		if (sc->encap_cookie4) {
349 			encap_detach(sc->encap_cookie4);
350 			sc->encap_cookie4 = NULL;
352 		printf("%s: unable to attach encap6\n", if_name(sc->gif_if));
353 		ifnet_release(sc->gif_if);
354 		FREE(sc, M_DEVBUF);
358 	sc->gif_called = 0;
359 	ifnet_set_mtu(sc->gif_if, GIF_MTU);
360 	ifnet_set_flags(sc->gif_if, IFF_POINTOPOINT | IFF_MULTICAST, 0xffff);
363 	sc->gif_if.if_flags  |= IFF_LINK2;
365 	result = ifnet_attach(sc->gif_if, NULL);
368 		ifnet_release(sc->gif_if);
369 		if (sc->encap_cookie4) {
370 			encap_detach(sc->encap_cookie4);
371 			sc->encap_cookie4 = NULL;
373 		if (sc->encap_cookie6) {
374 			encap_detach(sc->encap_cookie6);
375 			sc->encap_cookie6 = NULL;
377 		FREE(sc, M_DEVBUF);
381 	mac_ifnet_label_init(&sc->gif_if);
383 	bpfattach(sc->gif_if, DLT_NULL, sizeof(u_int));
384 	TAILQ_INSERT_TAIL(&gifs, sc, gif_link);
395 	struct gif_softc *sc = ifp->if_softc;
397 	TAILQ_REMOVE(&gifs, sc, gif_link);
399 	gif_delete_tunnel(sc);
401 	if (sc->encap_cookie6 != NULL) {
402 		err = encap_detach(sc->encap_cookie6);
407 	if (sc->encap_cookie4 != NULL) {
408 		err = encap_detach(sc->encap_cookie4);
420 	FREE(sc, M_DEVBUF);
433 	struct gif_softc *sc;
435 	sc = (struct gif_softc *)arg;
436 	if (sc == NULL)
439 	if ((ifnet_flags(sc->gif_if) & IFF_UP) == 0)
443 	if (!sc->gif_psrc || !sc->gif_pdst)
464 		if (sc->gif_psrc->sa_family != AF_INET ||
465 		    sc->gif_pdst->sa_family != AF_INET)
471 		if (sc->gif_psrc->sa_family != AF_INET6 ||
472 		    sc->gif_pdst->sa_family != AF_INET6)
486 	struct gif_softc *sc = ifnet_softc(ifp);
497 	    sc->gif_psrc == NULL || sc->gif_pdst == NULL) {
504 	bpf_tap_out(ifp, 0, m, &sc->gif_proto, sizeof(sc->gif_proto));
511 	switch (sc->gif_psrc->sa_family) {
514 		error = in_gif_output(ifp, sc->gif_proto, m, NULL);
519 		error = in6_gif_output(ifp, sc->gif_proto, m, NULL);
550 	struct gif_softc *sc = ifnet_softc(ifp);
552 	bpf_tap_in(ifp, 0, m, &sc->gif_proto, sizeof(sc->gif_proto));
582 	struct gif_softc *sc  = ifnet_softc(ifp);
719 			if (sc2 == sc)
762 		if (sc->gif_psrc)
763 			FREE((caddr_t)sc->gif_psrc, M_IFADDR);
768 		sc->gif_psrc = sa;
770 		if (sc->gif_pdst)
771 			FREE((caddr_t)sc->gif_pdst, M_IFADDR);
776 		sc->gif_pdst = sa;
785 		if (sc->gif_psrc) {
786 			FREE((caddr_t)sc->gif_psrc, M_IFADDR);
787 			sc->gif_psrc = NULL;
789 		if (sc->gif_pdst) {
790 			FREE((caddr_t)sc->gif_pdst, M_IFADDR);
791 			sc->gif_pdst = NULL;
801 		if (sc->gif_psrc == NULL) {
805 		src = sc->gif_psrc;
833 		if (sc->gif_pdst == NULL) {
837 		src = sc->gif_pdst;
862 		if (sc->gif_psrc == NULL || sc->gif_pdst == NULL) {
868 		src = sc->gif_psrc;
877 		src = sc->gif_pdst;
900 gif_delete_tunnel(sc)
901 	struct gif_softc *sc;
905 	if (sc->gif_psrc) {
906 		FREE((caddr_t)sc->gif_psrc, M_IFADDR);
907 		sc->gif_psrc = NULL;
909 	if (sc->gif_pdst) {
910 		FREE((caddr_t)sc->gif_pdst, M_IFADDR);
911 		sc->gif_pdst = NULL;