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ip_encap.c (95023) ip_encap.c (105194)
1/* $FreeBSD: head/sys/netinet/ip_encap.c 95023 2002-04-19 04:46:24Z suz $ */
1/* $FreeBSD: head/sys/netinet/ip_encap.c 105194 2002-10-16 01:54:46Z sam $ */
2/* $KAME: ip_encap.c,v 1.41 2001/03/15 08:35:08 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
9 * modification, are permitted provided that the following conditions

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480 return 0;
481}
482
483static void
484encap_fillarg(m, ep)
485 struct mbuf *m;
486 const struct encaptab *ep;
487{
2/* $KAME: ip_encap.c,v 1.41 2001/03/15 08:35:08 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
9 * modification, are permitted provided that the following conditions

--- 470 unchanged lines hidden (view full) ---

480 return 0;
481}
482
483static void
484encap_fillarg(m, ep)
485 struct mbuf *m;
486 const struct encaptab *ep;
487{
488#if 0
489 m->m_pkthdr.aux = ep->arg;
490#else
491 struct mbuf *n;
488 struct m_tag *tag;
492
489
493 n = m_aux_add(m, AF_INET, IPPROTO_IPV4);
494 if (n) {
495 *mtod(n, void **) = ep->arg;
496 n->m_len = sizeof(void *);
490 tag = m_tag_get(PACKET_TAG_ENCAP, sizeof (void*), M_NOWAIT);
491 if (tag) {
492 *(void**)(tag+1) = ep->arg;
493 m_tag_prepend(m, tag);
497 }
494 }
498#endif
499}
500
501void *
502encap_getarg(m)
503 struct mbuf *m;
504{
495}
496
497void *
498encap_getarg(m)
499 struct mbuf *m;
500{
505 void *p;
506#if 0
507 p = m->m_pkthdr.aux;
508 m->m_pkthdr.aux = NULL;
509 return p;
510#else
511 struct mbuf *n;
501 void *p = NULL;
502 struct m_tag *tag;
512
503
513 p = NULL;
514 n = m_aux_find(m, AF_INET, IPPROTO_IPV4);
515 if (n) {
516 if (n->m_len == sizeof(void *))
517 p = *mtod(n, void **);
518 m_aux_delete(m, n);
504 tag = m_tag_find(m, PACKET_TAG_ENCAP, NULL);
505 if (tag) {
506 p = *(void**)(tag+1);
507 m_tag_delete(m, tag);
519 }
520 return p;
508 }
509 return p;
521#endif
522}
510}