/*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2016 Apple Inc. All rights reserved.
*
- * @APPLE_LICENSE_OSREFERENCE_HEADER_START@
- *
- * This file contains Original Code and/or Modifications of Original Code
- * as defined in and that are subject to the Apple Public Source License
- * Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. The rights granted to you under the
- * License may not be used to create, or enable the creation or
- * redistribution of, unlawful or unlicensed copies of an Apple operating
- * system, or to circumvent, violate, or enable the circumvention or
- * violation of, any terms of an Apple operating system software license
- * agreement.
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
- * Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
*
- * The Original Code and all software distributed under the License are
- * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- * Please see the License for the specific language governing rights and
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
+ *
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
* limitations under the License.
*
- * @APPLE_LICENSE_OSREFERENCE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/* $FreeBSD: src/sys/netinet/ip_encap.c,v 1.1.2.2 2001/07/03 11:01:46 ume Exp $ */
/* $KAME: ip_encap.c,v 1.41 2001/03/15 08:35:08 itojun Exp $ */
#include <sys/socket.h>
#include <sys/sockio.h>
#include <sys/mbuf.h>
+#include <sys/mcache.h>
#include <sys/errno.h>
+#include <sys/domain.h>
#include <sys/protosw.h>
#include <sys/queue.h>
#include <netinet/ip.h>
#include <netinet/ip_var.h>
#include <netinet/ip_encap.h>
-#if MROUTING
-#include <netinet/ip_mroute.h>
-#endif /* MROUTING */
#if INET6
#include <netinet/ip6.h>
MALLOC_DEFINE(M_NETADDR, "Export Host", "Export host address structure");
#endif
+static void encap_init(struct protosw *, struct domain *);
static void encap_add(struct encaptab *);
static int mask_match(const struct encaptab *, const struct sockaddr *,
const struct sockaddr *);
LIST_HEAD(, encaptab) encaptab = LIST_HEAD_INITIALIZER(&encaptab);
#endif
-void
-encap_init()
+static void
+encap_init(struct protosw *pp, struct domain *dp)
{
- static int initialized = 0;
+#pragma unused(dp)
+ static int encap_initialized = 0;
- if (initialized)
+ VERIFY((pp->pr_flags & (PR_INITIALIZED|PR_ATTACHED)) == PR_ATTACHED);
+
+ /* This gets called by more than one protocols, so initialize once */
+ if (encap_initialized)
return;
- initialized++;
+ encap_initialized = 1;
#if 0
/*
* we cannot use LIST_INIT() here, since drivers may want to call
#endif
}
+void
+encap4_init(struct protosw *pp, struct domain *dp)
+{
+ encap_init(pp, dp);
+}
+
+void
+encap6_init(struct ip6protosw *pp, struct domain *dp)
+{
+ encap_init((struct protosw *)pp, dp);
+}
+
#if INET
void
-encap4_input(m, off)
- struct mbuf *m;
- int off;
+encap4_input(struct mbuf *m, int off)
{
int proto;
struct ip *ip;
va_end(ap);
#endif
+ /* Expect 32-bit aligned data pointer on strict-align platforms */
+ MBUF_STRICT_DATA_ALIGNMENT_CHECK_32(m);
+
ip = mtod(m, struct ip *);
#ifdef __APPLE__
proto = ip->ip_p;
return;
}
- /* for backward compatibility */
-# if MROUTING
-# define COMPATFUNC ipip_input
-# endif /*MROUTING*/
-
-#if COMPATFUNC
- if (proto == IPPROTO_IPV4) {
- COMPATFUNC(m, off);
- return;
- }
-#endif
-
/* last resort: inject to raw socket */
rip_input(m, off);
}
#if INET6
int
-encap6_input(mp, offp)
- struct mbuf **mp;
- int *offp;
+encap6_input(struct mbuf **mp, int *offp, int proto)
{
struct mbuf *m = *mp;
struct ip6_hdr *ip6;
const struct ip6protosw *psw;
struct encaptab *ep, *match;
int prio, matchprio;
- int proto;
- ip6 = mtod(m, struct ip6_hdr *);
- proto = ip6->ip6_nxt;
+ /* Expect 32-bit aligned data pointer on strict-align platforms */
+ MBUF_STRICT_DATA_ALIGNMENT_CHECK_32(m);
+ ip6 = mtod(m, struct ip6_hdr *);
bzero(&s, sizeof(s));
s.sin6_family = AF_INET6;
s.sin6_len = sizeof(struct sockaddr_in6);
psw = (const struct ip6protosw *)match->psw;
if (psw && psw->pr_input) {
encap_fillarg(m, match);
- return (*psw->pr_input)(mp, offp);
+ return (*psw->pr_input)(mp, offp, proto);
} else {
m_freem(m);
return IPPROTO_DONE;
}
/* last resort: inject to raw socket */
- return rip6_input(mp, offp);
+ return rip6_input(mp, offp, proto);
}
#endif
static void
-encap_add(ep)
- struct encaptab *ep;
+encap_add(struct encaptab *ep)
{
-
LIST_INSERT_HEAD(&encaptab, ep, chain);
}
* Return value will be necessary as input (cookie) for encap_detach().
*/
const struct encaptab *
-encap_attach(af, proto, sp, sm, dp, dm, psw, arg)
- int af;
- int proto;
- const struct sockaddr *sp, *sm;
- const struct sockaddr *dp, *dm;
- const struct protosw *psw;
- void *arg;
+encap_attach(int af, int proto, const struct sockaddr *sp,
+ const struct sockaddr *sm, const struct sockaddr *dp,
+ const struct sockaddr *dm, const struct protosw *psw, void *arg)
{
struct encaptab *ep;
int error;
- int s;
- s = splnet();
/* sanity check on args */
if (sp->sa_len > sizeof(ep->src) || dp->sa_len > sizeof(ep->dst)) {
error = EINVAL;
goto fail;
}
- ep = _MALLOC(sizeof(*ep), M_NETADDR, M_WAITOK); /*XXX*/
+ ep = _MALLOC(sizeof(*ep), M_NETADDR, M_WAITOK | M_ZERO); /* XXX */
if (ep == NULL) {
error = ENOBUFS;
goto fail;
}
- bzero(ep, sizeof(*ep));
ep->af = af;
ep->proto = proto;
encap_add(ep);
error = 0;
- splx(s);
return ep;
fail:
- splx(s);
return NULL;
}
const struct encaptab *
-encap_attach_func(af, proto, func, psw, arg)
- int af;
- int proto;
- int (*func)(const struct mbuf *, int, int, void *);
- const struct protosw *psw;
- void *arg;
+encap_attach_func( int af, int proto,
+ int (*func)(const struct mbuf *, int, int, void *),
+ const struct protosw *psw, void *arg)
{
struct encaptab *ep;
int error;
- int s;
- s = splnet();
/* sanity check on args */
if (!func) {
error = EINVAL;
goto fail;
}
- ep = _MALLOC(sizeof(*ep), M_NETADDR, M_WAITOK); /*XXX*/
+ ep = _MALLOC(sizeof(*ep), M_NETADDR, M_WAITOK | M_ZERO); /* XXX */
if (ep == NULL) {
error = ENOBUFS;
goto fail;
}
- bzero(ep, sizeof(*ep));
ep->af = af;
ep->proto = proto;
encap_add(ep);
error = 0;
- splx(s);
return ep;
fail:
- splx(s);
return NULL;
}
int
-encap_detach(cookie)
- const struct encaptab *cookie;
+encap_detach(const struct encaptab *cookie)
{
const struct encaptab *ep = cookie;
struct encaptab *p;
}
static int
-mask_match(ep, sp, dp)
- const struct encaptab *ep;
- const struct sockaddr *sp;
- const struct sockaddr *dp;
+mask_match(const struct encaptab *ep, const struct sockaddr *sp,
+ const struct sockaddr *dp)
{
struct sockaddr_storage s;
struct sockaddr_storage d;
return 0;
}
+struct encaptabtag {
+ void* *arg;
+};
+
static void
-encap_fillarg(m, ep)
- struct mbuf *m;
- const struct encaptab *ep;
+encap_fillarg(
+ struct mbuf *m,
+ const struct encaptab *ep)
{
-#if 0
- m->m_pkthdr.aux = ep->arg;
-#else
- struct mbuf *n;
-
- n = m_aux_add(m, AF_INET, IPPROTO_IPV4);
- if (n) {
- *mtod(n, void **) = ep->arg;
- n->m_len = sizeof(void *);
+ struct m_tag *tag;
+ struct encaptabtag *et;
+
+ tag = m_tag_create(KERNEL_MODULE_TAG_ID, KERNEL_TAG_TYPE_ENCAP,
+ sizeof(struct encaptabtag), M_WAITOK, m);
+
+ if (tag != NULL) {
+ et = (struct encaptabtag*)(tag + 1);
+ et->arg = ep->arg;
+ m_tag_prepend(m, tag);
}
-#endif
}
void *
-encap_getarg(m)
- struct mbuf *m;
+encap_getarg(struct mbuf *m)
{
- void *p;
-#if 0
- p = m->m_pkthdr.aux;
- m->m_pkthdr.aux = NULL;
- return p;
-#else
- struct mbuf *n;
-
- p = NULL;
- n = m_aux_find(m, AF_INET, IPPROTO_IPV4);
- if (n) {
- if (n->m_len == sizeof(void *))
- p = *mtod(n, void **);
- m_aux_delete(m, n);
+ struct m_tag *tag;
+ struct encaptabtag *et;
+ void *p = NULL;
+
+ tag = m_tag_locate(m, KERNEL_MODULE_TAG_ID, KERNEL_TAG_TYPE_ENCAP, NULL);
+ if (tag) {
+ et = (struct encaptabtag*)(tag + 1);
+ p = et->arg;
+ m_tag_delete(m, tag);
}
+
return p;
-#endif
}
projects / apple / xnu.git / blobdiff