if_gif.c (cfe30d02adda7c3b5c76156ac52d50d8cab325d9) if_gif.c (e9f947e27c9168a1c9e4bb239e4a094941b4a417)
1/* $FreeBSD$ */
2/* $KAME: if_gif.c,v 1.87 2001/10/19 08:50:27 itojun Exp $ */
3
4/*-
5 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without

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168 }
169
170 GIF_LOCK_INIT(sc);
171
172 GIF2IFP(sc)->if_softc = sc;
173 if_initname(GIF2IFP(sc), gifname, unit);
174
175 sc->encap_cookie4 = sc->encap_cookie6 = NULL;
1/* $FreeBSD$ */
2/* $KAME: if_gif.c,v 1.87 2001/10/19 08:50:27 itojun Exp $ */
3
4/*-
5 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without

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168 }
169
170 GIF_LOCK_INIT(sc);
171
172 GIF2IFP(sc)->if_softc = sc;
173 if_initname(GIF2IFP(sc), gifname, unit);
174
175 sc->encap_cookie4 = sc->encap_cookie6 = NULL;
176 sc->gif_options = GIF_ACCEPT_REVETHIP;
176 sc->gif_options = 0;
177
178 GIF2IFP(sc)->if_addrlen = 0;
179 GIF2IFP(sc)->if_mtu = GIF_MTU;
180 GIF2IFP(sc)->if_flags = IFF_POINTOPOINT | IFF_MULTICAST;
181#if 0
182 /* turn off ingress filter */
183 GIF2IFP(sc)->if_flags |= IFF_LINK2;
184#endif

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432 uint32_t af;
433#ifdef MAC
434 error = mac_ifnet_check_transmit(ifp, m);
435 if (error) {
436 m_freem(m);
437 goto end;
438 }
439#endif
177
178 GIF2IFP(sc)->if_addrlen = 0;
179 GIF2IFP(sc)->if_mtu = GIF_MTU;
180 GIF2IFP(sc)->if_flags = IFF_POINTOPOINT | IFF_MULTICAST;
181#if 0
182 /* turn off ingress filter */
183 GIF2IFP(sc)->if_flags |= IFF_LINK2;
184#endif

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432 uint32_t af;
433#ifdef MAC
434 error = mac_ifnet_check_transmit(ifp, m);
435 if (error) {
436 m_freem(m);
437 goto end;
438 }
439#endif
440 if ((ifp->if_flags & IFF_MONITOR) != 0) {
441 error = ENETDOWN;
442 m_freem(m);
443 goto end;
444 }
440
441 /*
442 * gif may cause infinite recursion calls when misconfigured.
443 * We'll prevent this by detecting loops.
444 *
445 * High nesting level may cause stack exhaustion.
446 * We'll prevent this by introducing upper limit.
447 */

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546 mac_ifnet_create_mbuf(ifp, m);
547#endif
548
549 if (bpf_peers_present(ifp->if_bpf)) {
550 u_int32_t af1 = af;
551 bpf_mtap2(ifp->if_bpf, &af1, sizeof(af1), m);
552 }
553
445
446 /*
447 * gif may cause infinite recursion calls when misconfigured.
448 * We'll prevent this by detecting loops.
449 *
450 * High nesting level may cause stack exhaustion.
451 * We'll prevent this by introducing upper limit.
452 */

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551 mac_ifnet_create_mbuf(ifp, m);
552#endif
553
554 if (bpf_peers_present(ifp->if_bpf)) {
555 u_int32_t af1 = af;
556 bpf_mtap2(ifp->if_bpf, &af1, sizeof(af1), m);
557 }
558
559 if ((ifp->if_flags & IFF_MONITOR) != 0) {
560 ifp->if_ipackets++;
561 ifp->if_ibytes += m->m_pkthdr.len;
562 m_freem(m);
563 return;
564 }
565
554 if (ng_gif_input_p != NULL) {
555 (*ng_gif_input_p)(ifp, &m, af);
556 if (m == NULL)
557 return;
558 }
559
560 /*
561 * Put the packet to the network layer input queue according to the

--- 511 unchanged lines hidden --- 		566 if (ng_gif_input_p != NULL) {
567 (*ng_gif_input_p)(ifp, &m, af);
568 if (m == NULL)
569 return;
570 }
571
572 /*
573 * Put the packet to the network layer input queue according to the

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