xnu-3789.70.16.tar.gz

[apple/xnu.git] / bsd / netinet6 / in6.h

diff --git a/bsd/netinet6/in6.h b/bsd/netinet6/in6.h
index d9df90b9bb061a4a6b4e3962c21c4e073e550041..b09c026b4dfe802f807a5da3da10989b890c2ace 100644 (file)
--- a/bsd/netinet6/in6.h
+++ b/bsd/netinet6/in6.h
@@ -1,5 +1,30 @@
-/*     $FreeBSD: src/sys/netinet6/in6.h,v 1.7.2.4 2001/07/04 09:45:23 ume Exp $        */
-/*     $KAME: in6.h,v 1.89 2001/05/27 13:28:35 itojun Exp $    */
+/*
+ * Copyright (c) 2008-2015 Apple Inc. All rights reserved.
+ *
+ * @APPLE_OSREFERENCE_LICENSE_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.
+ *
+ * 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_OSREFERENCE_LICENSE_HEADER_END@
+ */

 
 /*
  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
 
 /*
  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.


@@ -66,21 +91,26 @@
  */
 
 #ifndef __KAME_NETINET_IN_H_INCLUDED_
  */
 
 #ifndef __KAME_NETINET_IN_H_INCLUDED_

-#error "do not include netinet6/in6.h directly, include netinet/in.h.  see RFC2553"
+#error "do not include netinet6/in6.h directly, include netinet/in.h. " \
+       " see RFC2553"

 #endif
 
 #ifndef _NETINET6_IN6_H_
 #endif
 
 #ifndef _NETINET6_IN6_H_

-#define _NETINET6_IN6_H_
+#define        _NETINET6_IN6_H_

 #include <sys/appleapiopts.h>
 #include <sys/appleapiopts.h>

+#include <sys/_types.h>
+
+#include <sys/_types/_sa_family_t.h>

 
 /*
  * Identification of the network protocol stack
  * for *BSD-current/release: http://www.kame.net/dev/cvsweb.cgi/kame/COVERAGE
  * has the table of implementation/integration differences.
  */
 
 /*
  * Identification of the network protocol stack
  * for *BSD-current/release: http://www.kame.net/dev/cvsweb.cgi/kame/COVERAGE
  * has the table of implementation/integration differences.
  */

-#define __KAME__
-#define __KAME_VERSION         "20010528/apple-darwin"
+#define        __KAME__
+#define        __KAME_VERSION          "2009/apple-darwin"

 
 

+#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)

 /*
  * Local port number conventions:
  *
 /*
  * Local port number conventions:
  *


@@ -114,116 +144,142 @@
 #define        IPV6PORT_ANONMAX        65535
 #define        IPV6PORT_RESERVEDMIN    600
 #define        IPV6PORT_RESERVEDMAX    (IPV6PORT_RESERVED-1)
 #define        IPV6PORT_ANONMAX        65535
 #define        IPV6PORT_RESERVEDMIN    600
 #define        IPV6PORT_RESERVEDMAX    (IPV6PORT_RESERVED-1)

+#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */

 
 /*
  * IPv6 address
  */
 struct in6_addr {
        union {
 
 /*
  * IPv6 address
  */
 struct in6_addr {
        union {

-               u_int8_t   __u6_addr8[16];
-               u_int16_t  __u6_addr16[8];
-               u_int32_t  __u6_addr32[4];
+               __uint8_t   __u6_addr8[16];
+               __uint16_t  __u6_addr16[8];
+               __uint32_t  __u6_addr32[4];

        } __u6_addr;                    /* 128-bit IP6 address */
 };
 
        } __u6_addr;                    /* 128-bit IP6 address */
 };
 

-#define s6_addr   __u6_addr.__u6_addr8
-#ifdef KERNEL  /*XXX nonstandard*/
-#define s6_addr8  __u6_addr.__u6_addr8
-#define s6_addr16 __u6_addr.__u6_addr16
-#define s6_addr32 __u6_addr.__u6_addr32
+#define        s6_addr   __u6_addr.__u6_addr8
+#ifdef KERNEL  /* XXX nonstandard */
+#define        s6_addr8  __u6_addr.__u6_addr8
+#define        s6_addr16 __u6_addr.__u6_addr16
+#define        s6_addr32 __u6_addr.__u6_addr32

 #endif
 
 #endif
 

-#define INET6_ADDRSTRLEN       46
+#define        INET6_ADDRSTRLEN        46

 
 /*
  * Socket address for IPv6
  */
 
 /*
  * Socket address for IPv6
  */

-#if !defined(_XOPEN_SOURCE)
-#define SIN6_LEN
-#endif
+#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
+#define        SIN6_LEN
+#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */

 struct sockaddr_in6 {
 struct sockaddr_in6 {

-       u_int8_t        sin6_len;       /* length of this struct(sa_family_t)*/
-       u_int8_t        sin6_family;    /* AF_INET6 (sa_family_t) */
-       u_int16_t       sin6_port;      /* Transport layer port # (in_port_t)*/
-       u_int32_t       sin6_flowinfo;  /* IP6 flow information */
+       __uint8_t       sin6_len;       /* length of this struct(sa_family_t) */
+       sa_family_t     sin6_family;    /* AF_INET6 (sa_family_t) */
+       in_port_t       sin6_port;      /* Transport layer port # (in_port_t) */
+       __uint32_t      sin6_flowinfo;  /* IP6 flow information */

        struct in6_addr sin6_addr;      /* IP6 address */
        struct in6_addr sin6_addr;      /* IP6 address */

-       u_int32_t       sin6_scope_id;  /* scope zone index */
+       __uint32_t      sin6_scope_id;  /* scope zone index */

 };
 
 };
 

+#ifdef KERNEL  /* XXX nonstandard */

 /*
  * Local definition for masks
  */
 /*
  * Local definition for masks
  */

-#ifdef KERNEL  /*XXX nonstandard*/
-#define IN6MASK0       {{{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }}}
-#define IN6MASK32      {{{ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, \
+#define        IN6MASK0        {{{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }}}
+#define        IN6MASK7        {{{ 0xfe, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
+                           0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
+#define        IN6MASK16       {{{ 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
+                           0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
+#define        IN6MASK32       {{{ 0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, \

                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}

-#define IN6MASK64      {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
+#define        IN6MASK64       {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \

                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
                            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}

-#define IN6MASK96      {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
+#define        IN6MASK96       {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \

                            0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }}}
                            0xff, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }}}

-#define IN6MASK128     {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \
+#define        IN6MASK128      {{{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, \

                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }}}
 #endif
 
                            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }}}
 #endif
 

-#ifdef KERNEL
+#ifdef KERNEL_PRIVATE

 extern const struct sockaddr_in6 sa6_any;
 
 extern const struct in6_addr in6mask0;
 extern const struct sockaddr_in6 sa6_any;
 
 extern const struct in6_addr in6mask0;

+extern const struct in6_addr in6mask7;
+extern const struct in6_addr in6mask16;

 extern const struct in6_addr in6mask32;
 extern const struct in6_addr in6mask64;
 extern const struct in6_addr in6mask96;
 extern const struct in6_addr in6mask128;
 extern const struct in6_addr in6mask32;
 extern const struct in6_addr in6mask64;
 extern const struct in6_addr in6mask96;
 extern const struct in6_addr in6mask128;

-#endif /* KERNEL */

 
 

+#define        SIN6(s)         ((struct sockaddr_in6 *)(void *)s)
+#define        satosin6(sa)    SIN6(sa)
+#define        sin6tosa(sin6)  ((struct sockaddr *)(void *)(sin6))
+#define        SIN6IFSCOPE(s)  SIN6(s)
+#endif /* KERNEL_PRIVATE */
+
+#ifdef KERNEL  /* XXX nonstandard */

 /*
  * Macros started with IPV6_ADDR is KAME local
  */
 /*
  * Macros started with IPV6_ADDR is KAME local
  */

-#ifdef KERNEL  /*XXX nonstandard*/

 #if BYTE_ORDER == BIG_ENDIAN
 #if BYTE_ORDER == BIG_ENDIAN

-#define IPV6_ADDR_INT32_ONE    1
-#define IPV6_ADDR_INT32_TWO    2
-#define IPV6_ADDR_INT32_MNL    0xff010000
-#define IPV6_ADDR_INT32_MLL    0xff020000
-#define IPV6_ADDR_INT32_SMP    0x0000ffff
-#define IPV6_ADDR_INT16_ULL    0xfe80
-#define IPV6_ADDR_INT16_USL    0xfec0
-#define IPV6_ADDR_INT16_MLL    0xff02
+#define        IPV6_ADDR_INT32_ONE     1
+#define        IPV6_ADDR_INT32_TWO     2
+#define        IPV6_ADDR_INT32_MNL     0xff010000
+#define        IPV6_ADDR_INT32_MLL     0xff020000
+#define        IPV6_ADDR_INT32_SMP     0x0000ffff
+#define        IPV6_ADDR_INT16_ULL     0xfe80
+#define        IPV6_ADDR_INT16_USL     0xfec0
+#define        IPV6_ADDR_INT16_MLL     0xff02

 #elif BYTE_ORDER == LITTLE_ENDIAN
 #elif BYTE_ORDER == LITTLE_ENDIAN

-#define IPV6_ADDR_INT32_ONE    0x01000000
-#define IPV6_ADDR_INT32_TWO    0x02000000
-#define IPV6_ADDR_INT32_MNL    0x000001ff
-#define IPV6_ADDR_INT32_MLL    0x000002ff
-#define IPV6_ADDR_INT32_SMP    0xffff0000
-#define IPV6_ADDR_INT16_ULL    0x80fe
-#define IPV6_ADDR_INT16_USL    0xc0fe
-#define IPV6_ADDR_INT16_MLL    0x02ff
+#define        IPV6_ADDR_INT32_ONE     0x01000000
+#define        IPV6_ADDR_INT32_TWO     0x02000000
+#define        IPV6_ADDR_INT32_MNL     0x000001ff
+#define        IPV6_ADDR_INT32_MLL     0x000002ff
+#define        IPV6_ADDR_INT32_SMP     0xffff0000
+#define        IPV6_ADDR_INT16_ULL     0x80fe
+#define        IPV6_ADDR_INT16_USL     0xc0fe
+#define        IPV6_ADDR_INT16_MLL     0x02ff

 #endif
 #endif
 
 /*
  * Definition of some useful macros to handle IP6 addresses
  */
 #endif
 #endif
 
 /*
  * Definition of some useful macros to handle IP6 addresses
  */

-#define IN6ADDR_ANY_INIT \
+#define        IN6ADDR_ANY_INIT \

        {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}
        {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }}}

-#define IN6ADDR_LOOPBACK_INIT \
+#define        IN6ADDR_LOOPBACK_INIT \

        {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}
        {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}

-#define IN6ADDR_NODELOCAL_ALLNODES_INIT \
+#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
+#define        IN6ADDR_NODELOCAL_ALLNODES_INIT \

        {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}
        {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}

-#define IN6ADDR_LINKLOCAL_ALLNODES_INIT \
+#define        IN6ADDR_INTFACELOCAL_ALLNODES_INIT \
+       {{{ 0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
+           0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}
+#define        IN6ADDR_LINKLOCAL_ALLNODES_INIT \

        {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}
        {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 }}}

-#define IN6ADDR_LINKLOCAL_ALLROUTERS_INIT \
+#define        IN6ADDR_LINKLOCAL_ALLROUTERS_INIT \

        {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 }}}
        {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 }}}

+#define        IN6ADDR_LINKLOCAL_ALLV2ROUTERS_INIT \
+       {{{ 0xff, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
+           0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x16 }}}
+#define        IN6ADDR_V4MAPPED_INIT \
+       {{{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
+           0x00, 0x00, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00 }}}
+#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */

 
 extern const struct in6_addr in6addr_any;
 extern const struct in6_addr in6addr_loopback;
 
 extern const struct in6_addr in6addr_any;
 extern const struct in6_addr in6addr_loopback;

+#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)

 extern const struct in6_addr in6addr_nodelocal_allnodes;
 extern const struct in6_addr in6addr_linklocal_allnodes;
 extern const struct in6_addr in6addr_linklocal_allrouters;
 extern const struct in6_addr in6addr_nodelocal_allnodes;
 extern const struct in6_addr in6addr_linklocal_allnodes;
 extern const struct in6_addr in6addr_linklocal_allrouters;

+extern const struct in6_addr in6addr_linklocal_allv2routers;
+#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */

 
 /*
  * Equality
 
 /*
  * Equality


@@ -232,221 +288,408 @@ extern const struct in6_addr in6addr_linklocal_allrouters;
  * in ANSI standard.
  */
 #ifdef KERNEL
  * in ANSI standard.
  */
 #ifdef KERNEL

-#define IN6_ARE_ADDR_EQUAL(a, b)                       \
-    (bcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0)
+#define        IN6_ARE_ADDR_EQUAL(a, b) \
+       (bcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], \
+       sizeof (struct in6_addr)) == 0)

 #else
 #else

-#define IN6_ARE_ADDR_EQUAL(a, b)                       \
-    (memcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof(struct in6_addr)) == 0)
+#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
+#define        IN6_ARE_ADDR_EQUAL(a, b) \
+       (memcmp(&(a)->s6_addr[0], &(b)->s6_addr[0], sizeof (struct in6_addr)) \
+       == 0)
+#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */

 #endif
 
 #ifdef KERNEL                  /* non standard */
 /* see if two addresses are equal in a scope-conscious manner. */
 #endif
 
 #ifdef KERNEL                  /* non standard */
 /* see if two addresses are equal in a scope-conscious manner. */

-#define SA6_ARE_ADDR_EQUAL(a, b) \
+#define        SA6_ARE_ADDR_EQUAL(a, b) \

        (((a)->sin6_scope_id == 0 || (b)->sin6_scope_id == 0 || \
        (((a)->sin6_scope_id == 0 || (b)->sin6_scope_id == 0 || \

-         ((a)->sin6_scope_id == (b)->sin6_scope_id)) && \
-        (bcmp(&(a)->sin6_addr, &(b)->sin6_addr, sizeof(struct in6_addr)) == 0))
+       ((a)->sin6_scope_id == (b)->sin6_scope_id)) && \
+       (bcmp(&(a)->sin6_addr, &(b)->sin6_addr, sizeof (struct in6_addr)) == 0))

 #endif
 
 /*
  * Unspecified
  */
 #endif
 
 /*
  * Unspecified
  */

-#define IN6_IS_ADDR_UNSPECIFIED(a)     \
-       ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \
-        (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \
-        (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \
-        (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) == 0))
+#define        IN6_IS_ADDR_UNSPECIFIED(a)      \
+       ((*(const __uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \
+       (*(const __uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \
+       (*(const __uint32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \
+       (*(const __uint32_t *)(const void *)(&(a)->s6_addr[12]) == 0))

 
 /*
  * Loopback
  */
 
 /*
  * Loopback
  */

-#define IN6_IS_ADDR_LOOPBACK(a)                \
-       ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \
-        (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \
-        (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \
-        (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) == ntohl(1)))
+#define        IN6_IS_ADDR_LOOPBACK(a)         \
+       ((*(const __uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \
+       (*(const __uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \
+       (*(const __uint32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \
+       (*(const __uint32_t *)(const void *)(&(a)->s6_addr[12]) == ntohl(1)))

 
 /*
  * IPv4 compatible
  */
 
 /*
  * IPv4 compatible
  */

-#define IN6_IS_ADDR_V4COMPAT(a)                \
-       ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \
-        (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \
-        (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \
-        (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) != 0) &&        \
-        (*(const u_int32_t *)(const void *)(&(a)->s6_addr[12]) != ntohl(1)))
+#define        IN6_IS_ADDR_V4COMPAT(a)         \
+       ((*(const __uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \
+       (*(const __uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \
+       (*(const __uint32_t *)(const void *)(&(a)->s6_addr[8]) == 0) && \
+       (*(const __uint32_t *)(const void *)(&(a)->s6_addr[12]) != 0) && \
+       (*(const __uint32_t *)(const void *)(&(a)->s6_addr[12]) != ntohl(1)))

 
 /*
  * Mapped
  */
 
 /*
  * Mapped
  */

-#define IN6_IS_ADDR_V4MAPPED(a)                      \
-       ((*(const u_int32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \
-        (*(const u_int32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \
-        (*(const u_int32_t *)(const void *)(&(a)->s6_addr[8]) == ntohl(0x0000ffff)))
+#define        IN6_IS_ADDR_V4MAPPED(a)               \
+       ((*(const __uint32_t *)(const void *)(&(a)->s6_addr[0]) == 0) && \
+       (*(const __uint32_t *)(const void *)(&(a)->s6_addr[4]) == 0) && \
+       (*(const __uint32_t *)(const void *)(&(a)->s6_addr[8]) == \
+       ntohl(0x0000ffff)))
+
+/*
+ * 6to4
+ */
+#define        IN6_IS_ADDR_6TO4(x)     (ntohs((x)->s6_addr16[0]) == 0x2002)

 
 /*
  * KAME Scope Values
  */
 
 
 /*
  * KAME Scope Values
  */
 

-#ifdef KERNEL  /*XXX nonstandard*/
-#define IPV6_ADDR_SCOPE_NODELOCAL      0x01
-#define IPV6_ADDR_SCOPE_LINKLOCAL      0x02
-#define IPV6_ADDR_SCOPE_SITELOCAL      0x05
-#define IPV6_ADDR_SCOPE_ORGLOCAL       0x08    /* just used in this file */
-#define IPV6_ADDR_SCOPE_GLOBAL         0x0e
+#ifdef KERNEL  /* XXX nonstandard */
+#define        IPV6_ADDR_SCOPE_NODELOCAL       0x01
+#define        IPV6_ADDR_SCOPE_INTFACELOCAL    0x01
+#define        IPV6_ADDR_SCOPE_LINKLOCAL       0x02
+#define        IPV6_ADDR_SCOPE_SITELOCAL       0x05
+#define        IPV6_ADDR_SCOPE_ORGLOCAL        0x08    /* just used in this file */
+#define        IPV6_ADDR_SCOPE_GLOBAL          0x0e

 #else
 #else

-#define __IPV6_ADDR_SCOPE_NODELOCAL    0x01
-#define __IPV6_ADDR_SCOPE_LINKLOCAL    0x02
-#define __IPV6_ADDR_SCOPE_SITELOCAL    0x05
-#define __IPV6_ADDR_SCOPE_ORGLOCAL     0x08    /* just used in this file */
-#define __IPV6_ADDR_SCOPE_GLOBAL       0x0e
+#define        __IPV6_ADDR_SCOPE_NODELOCAL     0x01
+#define        __IPV6_ADDR_SCOPE_INTFACELOCAL  0x01
+#define        __IPV6_ADDR_SCOPE_LINKLOCAL     0x02
+#define        __IPV6_ADDR_SCOPE_SITELOCAL     0x05
+#define        __IPV6_ADDR_SCOPE_ORGLOCAL      0x08    /* just used in this file */
+#define        __IPV6_ADDR_SCOPE_GLOBAL        0x0e

 #endif
 
 /*
  * Unicast Scope
  * Note that we must check topmost 10 bits only, not 16 bits (see RFC2373).
  */
 #endif
 
 /*
  * Unicast Scope
  * Note that we must check topmost 10 bits only, not 16 bits (see RFC2373).
  */

-#define IN6_IS_ADDR_LINKLOCAL(a)       \
+#define        IN6_IS_ADDR_LINKLOCAL(a)        \

        (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0x80))
        (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0x80))

-#define IN6_IS_ADDR_SITELOCAL(a)       \
+#define        IN6_IS_ADDR_SITELOCAL(a)        \

        (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0xc0))
 
 /*
  * Multicast
  */
        (((a)->s6_addr[0] == 0xfe) && (((a)->s6_addr[1] & 0xc0) == 0xc0))
 
 /*
  * Multicast
  */

-#define IN6_IS_ADDR_MULTICAST(a)       ((a)->s6_addr[0] == 0xff)
+#define        IN6_IS_ADDR_MULTICAST(a)        ((a)->s6_addr[0] == 0xff)

 
 

-#ifdef KERNEL  /*XXX nonstandard*/
-#define IPV6_ADDR_MC_SCOPE(a)          ((a)->s6_addr[1] & 0x0f)
+/*
+ * Unique Local IPv6 Unicast Addresses (per RFC 4193)
+ */
+#define        IN6_IS_ADDR_UNIQUE_LOCAL(a) \
+       (((a)->s6_addr[0] == 0xfc) || ((a)->s6_addr[0] == 0xfd))
+
+#ifdef KERNEL  /* XXX nonstandard */
+#define        IPV6_ADDR_MC_SCOPE(a)           ((a)->s6_addr[1] & 0x0f)

 #else
 #else

-#define __IPV6_ADDR_MC_SCOPE(a)                ((a)->s6_addr[1] & 0x0f)
+#define        __IPV6_ADDR_MC_SCOPE(a)         ((a)->s6_addr[1] & 0x0f)

 #endif
 
 /*
  * Multicast Scope
  */
 #endif
 
 /*
  * Multicast Scope
  */

-#ifdef KERNEL  /*refers nonstandard items */
-#define IN6_IS_ADDR_MC_NODELOCAL(a)    \
+#ifdef KERNEL  /* refers nonstandard items */
+#define        IN6_IS_ADDR_MC_NODELOCAL(a)     \
+       (IN6_IS_ADDR_MULTICAST(a) &&    \
+       (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_NODELOCAL))
+#define        IN6_IS_ADDR_MC_INTFACELOCAL(a)  \

        (IN6_IS_ADDR_MULTICAST(a) &&    \
        (IN6_IS_ADDR_MULTICAST(a) &&    \

-        (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_NODELOCAL))
-#define IN6_IS_ADDR_MC_LINKLOCAL(a)    \
+       (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_INTFACELOCAL))
+#define        IN6_IS_ADDR_MC_LINKLOCAL(a)     \

        (IN6_IS_ADDR_MULTICAST(a) &&    \
        (IN6_IS_ADDR_MULTICAST(a) &&    \

-        (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_LINKLOCAL))
-#define IN6_IS_ADDR_MC_SITELOCAL(a)    \
+       (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_LINKLOCAL))
+#define        IN6_IS_ADDR_MC_SITELOCAL(a)     \

        (IN6_IS_ADDR_MULTICAST(a) &&    \
        (IN6_IS_ADDR_MULTICAST(a) &&    \

-        (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_SITELOCAL))
-#define IN6_IS_ADDR_MC_ORGLOCAL(a)     \
+       (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_SITELOCAL))
+#define        IN6_IS_ADDR_MC_ORGLOCAL(a)      \

        (IN6_IS_ADDR_MULTICAST(a) &&    \
        (IN6_IS_ADDR_MULTICAST(a) &&    \

-        (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_ORGLOCAL))
-#define IN6_IS_ADDR_MC_GLOBAL(a)       \
+       (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_ORGLOCAL))
+#define        IN6_IS_ADDR_MC_GLOBAL(a)        \

        (IN6_IS_ADDR_MULTICAST(a) &&    \
        (IN6_IS_ADDR_MULTICAST(a) &&    \

-        (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_GLOBAL))
+       (IPV6_ADDR_MC_SCOPE(a) == IPV6_ADDR_SCOPE_GLOBAL))

 #else
 #else

-#define IN6_IS_ADDR_MC_NODELOCAL(a)    \
+#define        IN6_IS_ADDR_MC_NODELOCAL(a)     \

        (IN6_IS_ADDR_MULTICAST(a) &&    \
        (IN6_IS_ADDR_MULTICAST(a) &&    \

-        (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_NODELOCAL))
-#define IN6_IS_ADDR_MC_LINKLOCAL(a)    \
+       (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_NODELOCAL))
+#define        IN6_IS_ADDR_MC_LINKLOCAL(a)     \

        (IN6_IS_ADDR_MULTICAST(a) &&    \
        (IN6_IS_ADDR_MULTICAST(a) &&    \

-        (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_LINKLOCAL))
-#define IN6_IS_ADDR_MC_SITELOCAL(a)    \
+       (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_LINKLOCAL))
+#define        IN6_IS_ADDR_MC_SITELOCAL(a)     \

        (IN6_IS_ADDR_MULTICAST(a) &&    \
        (IN6_IS_ADDR_MULTICAST(a) &&    \

-        (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_SITELOCAL))
-#define IN6_IS_ADDR_MC_ORGLOCAL(a)     \
+       (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_SITELOCAL))
+#define        IN6_IS_ADDR_MC_ORGLOCAL(a)      \

        (IN6_IS_ADDR_MULTICAST(a) &&    \
        (IN6_IS_ADDR_MULTICAST(a) &&    \

-        (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_ORGLOCAL))
-#define IN6_IS_ADDR_MC_GLOBAL(a)       \
+       (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_ORGLOCAL))
+#define        IN6_IS_ADDR_MC_GLOBAL(a)        \

        (IN6_IS_ADDR_MULTICAST(a) &&    \
        (IN6_IS_ADDR_MULTICAST(a) &&    \

-        (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_GLOBAL))
+       (__IPV6_ADDR_MC_SCOPE(a) == __IPV6_ADDR_SCOPE_GLOBAL))

 #endif
 
 #endif
 

-#ifdef KERNEL  /*nonstandard*/
+#ifdef KERNEL  /* nonstandard */

 /*
  * KAME Scope
  */
 /*
  * KAME Scope
  */

-#define IN6_IS_SCOPE_LINKLOCAL(a)      \
+#define        IN6_IS_SCOPE_LINKLOCAL(a)       \

        ((IN6_IS_ADDR_LINKLOCAL(a)) ||  \
        ((IN6_IS_ADDR_LINKLOCAL(a)) ||  \

-        (IN6_IS_ADDR_MC_LINKLOCAL(a)))
+       (IN6_IS_ADDR_MC_LINKLOCAL(a)))
+
+#define        IN6_IS_SCOPE_EMBED(a)                   \
+       ((IN6_IS_ADDR_LINKLOCAL(a)) ||          \
+       (IN6_IS_ADDR_MC_LINKLOCAL(a)) ||        \
+       (IN6_IS_ADDR_MC_INTFACELOCAL(a)))
+
+#define        IFA6_IS_DEPRECATED(a, t) \
+       ((a)->ia6_lifetime.ia6ti_preferred != 0 && \
+       (a)->ia6_lifetime.ia6ti_preferred < (t))
+#define        IFA6_IS_INVALID(a, t) \
+       ((a)->ia6_lifetime.ia6ti_expire != 0 && \
+       (a)->ia6_lifetime.ia6ti_expire < (t))
+#endif /* KERNEL */

 
 

-#define IFA6_IS_DEPRECATED(a) \
-       ((a)->ia6_lifetime.ia6t_preferred != 0 && \
-        (a)->ia6_lifetime.ia6t_preferred < time_second)
-#define IFA6_IS_INVALID(a) \
-       ((a)->ia6_lifetime.ia6t_expire != 0 && \
-        (a)->ia6_lifetime.ia6t_expire < time_second)
-#endif /* _KERNEL */
+#ifdef PRIVATE
+struct route_in6_old {
+       void            *ro_rt;
+       uint32_t        ro_flags;
+       struct sockaddr_in6 ro_dst;
+};
+#endif /* PRIVATE */

 
 

+#ifdef BSD_KERNEL_PRIVATE

 /*
  * IP6 route structure
 /*
  * IP6 route structure

+ *
+ * A route consists of a destination address and a reference
+ * to a routing entry.  These are often held by protocols
+ * in their control blocks, e.g. inpcb.

  */
  */

-#ifdef __APPLE_API_PRIVATE
-#if !defined(_XOPEN_SOURCE)

 struct route_in6 {
 struct route_in6 {

-       struct  rtentry *ro_rt;
-       struct  sockaddr_in6 ro_dst;
+       /*
+        * N.B: struct route_in6 must begin with ro_{rt,srcia,flags}
+        * because the code does some casts of a 'struct route_in6 *'
+        * to a 'struct route *'.
+        */
+       struct rtentry  *ro_rt;
+       struct ifaddr   *ro_srcia;
+       uint32_t        ro_flags;       /* route flags */
+       struct sockaddr_in6 ro_dst;

 };
 };

-#endif
-#endif /* __APPLE_API_PRIVATE */
+#endif /* BSD_KERNEL_PRIVATE */

 
 /*
  * Options for use with [gs]etsockopt at the IPV6 level.
  * First word of comment is data type; bool is stored in int.
  */
 /* no hdrincl */
 
 /*
  * Options for use with [gs]etsockopt at the IPV6 level.
  * First word of comment is data type; bool is stored in int.
  */
 /* no hdrincl */

-#if 0 /* the followings are relic in IPv4 and hence are disabled */
-#define IPV6_OPTIONS           1  /* buf/ip6_opts; set/get IP6 options */
-#define IPV6_RECVOPTS          5  /* bool; receive all IP6 opts w/dgram */
-#define IPV6_RECVRETOPTS       6  /* bool; receive IP6 opts for response */
-#define IPV6_RECVDSTADDR       7  /* bool; receive IP6 dst addr w/dgram */
-#define IPV6_RETOPTS           8  /* ip6_opts; set/get IP6 options */
+#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
+/*
+ * RFC 3542 define the following socket options in a manner incompatible
+ * with RFC 2292:
+ *   IPV6_PKTINFO
+ *   IPV6_HOPLIMIT
+ *   IPV6_NEXTHOP
+ *   IPV6_HOPOPTS
+ *   IPV6_DSTOPTS
+ *   IPV6_RTHDR
+ *
+ * To use the new IPv6 Sockets options introduced by RFC 3542
+ * the constant __APPLE_USE_RFC_3542 must be defined before
+ * including <netinet/in.h>
+ *
+ * To use the old IPv6 Sockets options from RFC 2292
+ * the constant __APPLE_USE_RFC_2292 must be defined before
+ * including <netinet/in.h>
+ *
+ * Note that eventually RFC 3542 is going to be the
+ * default and RFC 2292 will be obsolete.
+ */
+#ifdef BSD_KERNEL_PRIVATE
+#define        __APPLE_USE_RFC_3542 1
+#endif /* BSD_KERNEL_PRIVATE */
+
+#if defined(__APPLE_USE_RFC_3542) && defined(__APPLE_USE_RFC_2292)
+#error "__APPLE_USE_RFC_3542 and __APPLE_USE_RFC_2292 cannot be both defined"

 #endif
 #endif

-#define IPV6_SOCKOPT_RESERVED1 3  /* reserved for future use */
-#define IPV6_UNICAST_HOPS      4  /* int; IP6 hops */
-#define IPV6_MULTICAST_IF      9  /* u_char; set/get IP6 multicast i/f  */
-#define IPV6_MULTICAST_HOPS    10 /* u_char; set/get IP6 multicast hops */
-#define IPV6_MULTICAST_LOOP    11 /* u_char; set/get IP6 multicast loopback */
-#define IPV6_JOIN_GROUP                12 /* ip6_mreq; join a group membership */
-#define IPV6_LEAVE_GROUP       13 /* ip6_mreq; leave a group membership */
-#define IPV6_PORTRANGE         14 /* int; range to choose for unspec port */
-#define ICMP6_FILTER           18 /* icmp6_filter; icmp6 filter */
-/* RFC2292 options */
-#define IPV6_PKTINFO           19 /* bool; send/recv if, src/dst addr */
-#define IPV6_HOPLIMIT          20 /* bool; hop limit */
-#define IPV6_NEXTHOP           21 /* bool; next hop addr */
-#define IPV6_HOPOPTS           22 /* bool; hop-by-hop option */
-#define IPV6_DSTOPTS           23 /* bool; destination option */
-#define IPV6_RTHDR             24 /* bool; routing header */
-#define IPV6_PKTOPTIONS                25 /* buf/cmsghdr; set/get IPv6 options */
-
-#define IPV6_CHECKSUM          26 /* int; checksum offset for raw socket */
-#define IPV6_V6ONLY            27 /* bool; only bind INET6 at wildcard bind */
+
+#if 0 /* the followings are relic in IPv4 and hence are disabled */
+#define        IPV6_OPTIONS            1  /* buf/ip6_opts; set/get IP6 options */
+#define        IPV6_RECVOPTS           5  /* bool; receive all IP6 opts w/dgram */
+#define        IPV6_RECVRETOPTS        6  /* bool; receive IP6 opts for response */
+#define        IPV6_RECVDSTADDR        7  /* bool; receive IP6 dst addr w/dgram */
+#define        IPV6_RETOPTS            8  /* ip6_opts; set/get IP6 options */
+#endif /* 0 */
+#define        IPV6_SOCKOPT_RESERVED1  3  /* reserved for future use */
+#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */
+#define        IPV6_UNICAST_HOPS       4  /* int; IP6 hops */
+#define        IPV6_MULTICAST_IF       9  /* __uint8_t; set/get IP6 multicast i/f  */
+#define        IPV6_MULTICAST_HOPS     10 /* __uint8_t; set/get IP6 multicast hops */
+#define        IPV6_MULTICAST_LOOP     11 /* __uint8_t; set/get IP6 mcast loopback */
+#define        IPV6_JOIN_GROUP         12 /* ip6_mreq; join a group membership */
+#define        IPV6_LEAVE_GROUP        13 /* ip6_mreq; leave a group membership */
+
+#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
+#define        IPV6_PORTRANGE          14 /* int; range to choose for unspec port */
+#define        ICMP6_FILTER            18 /* icmp6_filter; icmp6 filter */
+#define        IPV6_2292PKTINFO        19 /* bool; send/recv if, src/dst addr */
+#define        IPV6_2292HOPLIMIT       20 /* bool; hop limit */
+#define        IPV6_2292NEXTHOP        21 /* bool; next hop addr */
+#define        IPV6_2292HOPOPTS        22 /* bool; hop-by-hop option */
+#define        IPV6_2292DSTOPTS        23 /* bool; destinaion option */
+#define        IPV6_2292RTHDR          24 /* ip6_rthdr: routing header */
+
+/* buf/cmsghdr; set/get IPv6 options [obsoleted by RFC3542] */
+#define        IPV6_2292PKTOPTIONS     25
+
+#ifdef __APPLE_USE_RFC_2292
+#define        IPV6_PKTINFO    IPV6_2292PKTINFO
+#define        IPV6_HOPLIMIT   IPV6_2292HOPLIMIT
+#define        IPV6_NEXTHOP    IPV6_2292NEXTHOP
+#define        IPV6_HOPOPTS    IPV6_2292HOPOPTS
+#define        IPV6_DSTOPTS    IPV6_2292DSTOPTS
+#define        IPV6_RTHDR      IPV6_2292RTHDR
+#define        IPV6_PKTOPTIONS IPV6_2292PKTOPTIONS
+#endif /* __APPLE_USE_RFC_2292 */
+
+#define        IPV6_CHECKSUM           26 /* int; checksum offset for raw socket */
+#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */
+#define        IPV6_V6ONLY             27 /* bool; only bind INET6 at wildcard bind */
+#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)

 #ifndef KERNEL
 #ifndef KERNEL

-#define IPV6_BINDV6ONLY                IPV6_V6ONLY
-#endif
+#define        IPV6_BINDV6ONLY         IPV6_V6ONLY
+#endif /* KERNEL */
+
+
+#if 1 /* IPSEC */
+#define        IPV6_IPSEC_POLICY       28 /* struct; get/set security policy */
+#endif /* 1 */
+#define        IPV6_FAITH              29 /* deprecated */

 
 

+#if 1 /* IPV6FIREWALL */
+#define        IPV6_FW_ADD             30 /* add a firewall rule to chain */
+#define        IPV6_FW_DEL             31 /* delete a firewall rule from chain */
+#define        IPV6_FW_FLUSH           32 /* flush firewall rule chain */
+#define        IPV6_FW_ZERO            33 /* clear single/all firewall counter(s) */
+#define        IPV6_FW_GET             34 /* get entire firewall rule chain */
+#endif /* 1 */

 
 

-#if 1 /*IPSEC*/
-#define IPV6_IPSEC_POLICY      28 /* struct; get/set security policy */
+/*
+ * APPLE: NOTE the value of those 2 options is kept unchanged from
+ *   previous version of darwin/OS X for binary compatibility reasons
+ *   and differ from FreeBSD (values 57 and 61). See below.
+ */
+#define        IPV6_RECVTCLASS         35 /* bool; recv traffic class values */
+#define        IPV6_TCLASS             36 /* int; send traffic class value */
+
+#ifdef __APPLE_USE_RFC_3542
+/* new socket options introduced in RFC3542 */
+/*
+ * ip6_dest; send dst option before rthdr
+ * APPLE: Value purposely different than FreeBSD (35) to avoid
+ * collision with definition of IPV6_RECVTCLASS in previous
+ * darwin implementations
+ */
+#define        IPV6_RTHDRDSTOPTS       57
+
+/*
+ * bool; recv if, dst addr
+ * APPLE: Value purposely different than FreeBSD(36) to avoid
+ * collision with definition of IPV6_TCLASS in previous
+ * darwin implementations
+ */
+#define        IPV6_RECVPKTINFO        61
+
+#define        IPV6_RECVHOPLIMIT       37 /* bool; recv hop limit */
+#define        IPV6_RECVRTHDR          38 /* bool; recv routing header */
+#define        IPV6_RECVHOPOPTS        39 /* bool; recv hop-by-hop option */
+#define        IPV6_RECVDSTOPTS        40 /* bool; recv dst option after rthdr */
+#ifdef KERNEL
+#define        IPV6_RECVRTHDRDSTOPTS   41 /* bool; recv dst option before rthdr */

 #endif
 #endif

-#define IPV6_FAITH             29 /* bool; accept FAITH'ed connections */
-
-#if 1 /*IPV6FIREWALL*/
-#define IPV6_FW_ADD            30 /* add a firewall rule to chain */
-#define IPV6_FW_DEL            31 /* delete a firewall rule from chain */
-#define IPV6_FW_FLUSH          32 /* flush firewall rule chain */
-#define IPV6_FW_ZERO           33 /* clear single/all firewall counter(s) */
-#define IPV6_FW_GET            34 /* get entire firewall rule chain */
+
+#define        IPV6_USE_MIN_MTU        42 /* bool; send packets at the minimum MTU */
+#define        IPV6_RECVPATHMTU        43 /* bool; notify an according MTU */
+
+/*
+ * mtuinfo; get the current path MTU (sopt), 4 bytes int;
+ * MTU notification (cmsg)
+ */
+#define        IPV6_PATHMTU            44
+
+#if 0 /* obsoleted during 2292bis -> 3542 */
+/* no data; ND reachability confirm (cmsg only/not in of RFC3542) */
+#define        IPV6_REACHCONF          45

 #endif
 #endif

+/* more new socket options introduced in RFC3542 */
+#define        IPV6_3542PKTINFO        46 /* in6_pktinfo; send if, src addr */
+#define        IPV6_3542HOPLIMIT       47 /* int; send hop limit */
+#define        IPV6_3542NEXTHOP        48 /* sockaddr; next hop addr */
+#define        IPV6_3542HOPOPTS        49 /* ip6_hbh; send hop-by-hop option */
+#define        IPV6_3542DSTOPTS        50 /* ip6_dest; send dst option befor rthdr */
+#define        IPV6_3542RTHDR          51 /* ip6_rthdr; send routing header */
+
+#define        IPV6_PKTINFO    IPV6_3542PKTINFO
+#define        IPV6_HOPLIMIT   IPV6_3542HOPLIMIT
+#define        IPV6_NEXTHOP    IPV6_3542NEXTHOP
+#define        IPV6_HOPOPTS    IPV6_3542HOPOPTS
+#define        IPV6_DSTOPTS    IPV6_3542DSTOPTS
+#define        IPV6_RTHDR      IPV6_3542RTHDR
+
+#define        IPV6_AUTOFLOWLABEL      59 /* bool; attach flowlabel automagically */
+
+#define        IPV6_DONTFRAG           62 /* bool; disable IPv6 fragmentation */
+
+/* int; prefer temporary addresses as the source address. */
+#define        IPV6_PREFER_TEMPADDR    63
+
+/*
+ * The following option is private; do not use it from user applications.
+ * It is deliberately defined to the same value as IP_MSFILTER.
+ */
+#define        IPV6_MSFILTER           74 /* struct __msfilterreq; */
+#endif /* __APPLE_USE_RFC_3542 */
+
+#define        IPV6_BOUND_IF           125 /* int; set/get bound interface */
+
+#ifdef PRIVATE
+#define        IPV6_NO_IFT_CELLULAR    6969 /* for internal use only */
+#define        IPV6_OUT_IF             9696 /* for internal use only */
+#endif /* PRIVATE */

 
 /* to define items, should talk with KAME guys first, for *BSD compatibility */
 
 
 /* to define items, should talk with KAME guys first, for *BSD compatibility */
 

-#define IPV6_RTHDR_LOOSE     0 /* this hop need not be a neighbor. XXX old spec */
-#define IPV6_RTHDR_STRICT    1 /* this hop must be a neighbor. XXX old spec */
-#define IPV6_RTHDR_TYPE_0    0 /* IPv6 routing header type 0 */
+#define        IPV6_RTHDR_LOOSE        0 /* this hop need not be a neighbor. */
+#define        IPV6_RTHDR_STRICT       1 /* this hop must be a neighbor. */
+#define        IPV6_RTHDR_TYPE_0       0 /* IPv6 routing header type 0 */

 
 /*
  * Defaults and limits for options
  */
 
 /*
  * Defaults and limits for options
  */

-#define IPV6_DEFAULT_MULTICAST_HOPS 1  /* normally limit m'casts to 1 hop  */
-#define IPV6_DEFAULT_MULTICAST_LOOP 1  /* normally hear sends if a member  */
+#define        IPV6_DEFAULT_MULTICAST_HOPS 1   /* normally limit m'casts to 1 hop  */
+#define        IPV6_DEFAULT_MULTICAST_LOOP 1   /* normally hear sends if a member  */
+
+/*
+ * The im6o_membership vector for each socket is now dynamically allocated at
+ * run-time, bounded by USHRT_MAX, and is reallocated when needed, sized
+ * according to a power-of-two increment.
+ */
+#define        IPV6_MIN_MEMBERSHIPS    31
+#define        IPV6_MAX_MEMBERSHIPS    4095
+
+/*
+ * Default resource limits for IPv6 multicast source filtering.
+ * These may be modified by sysctl.
+ */
+#define        IPV6_MAX_GROUP_SRC_FILTER       512     /* sources per group */
+#define        IPV6_MAX_SOCK_SRC_FILTER        128     /* sources per socket/group */

 
 /*
  * Argument structure for IPV6_JOIN_GROUP and IPV6_LEAVE_GROUP.
 
 /*
  * Argument structure for IPV6_JOIN_GROUP and IPV6_LEAVE_GROUP.


@@ -457,13 +700,21 @@ struct ipv6_mreq {
 };
 
 /*
 };
 
 /*

- * IPV6_PKTINFO: Packet information(RFC2292 sec 5)
+ * IPV6_2292PKTINFO: Packet information(RFC2292 sec 5)

  */
 struct in6_pktinfo {
        struct in6_addr ipi6_addr;      /* src/dst IPv6 address */
        unsigned int    ipi6_ifindex;   /* send/recv interface index */
 };
 
  */
 struct in6_pktinfo {
        struct in6_addr ipi6_addr;      /* src/dst IPv6 address */
        unsigned int    ipi6_ifindex;   /* send/recv interface index */
 };
 

+/*
+ * Control structure for IPV6_RECVPATHMTU socket option.
+ */
+struct ip6_mtuinfo {
+       struct sockaddr_in6 ip6m_addr;  /* or sockaddr_storage? */
+       uint32_t ip6m_mtu;
+};
+

 /*
  * Argument for IPV6_PORTRANGE:
  * - which range to search when port is unspecified at bind() or connect()
 /*
  * Argument for IPV6_PORTRANGE:
  * - which range to search when port is unspecified at bind() or connect()


@@ -472,16 +723,73 @@ struct in6_pktinfo {
 #define        IPV6_PORTRANGE_HIGH     1       /* "high" - request firewall bypass */
 #define        IPV6_PORTRANGE_LOW      2       /* "low" - vouchsafe security */
 
 #define        IPV6_PORTRANGE_HIGH     1       /* "high" - request firewall bypass */
 #define        IPV6_PORTRANGE_LOW      2       /* "low" - vouchsafe security */
 

-#if !defined(_XOPEN_SOURCE)

 /*
  * Definitions for inet6 sysctl operations.
  *
  * Third level is protocol number.
  * Fourth level is desired variable within that protocol.
  */
 /*
  * Definitions for inet6 sysctl operations.
  *
  * Third level is protocol number.
  * Fourth level is desired variable within that protocol.
  */

-#define IPV6PROTO_MAXID        (IPPROTO_PIM + 1)       /* don't list to IPV6PROTO_MAX */
+#define        IPV6PROTO_MAXID (IPPROTO_PIM + 1)  /* don't list to IPV6PROTO_MAX */
+
+/*
+ * Names for IP sysctl objects
+ */
+#define        IPV6CTL_FORWARDING      1       /* act as router */
+#define        IPV6CTL_SENDREDIRECTS   2       /* may send redirects when forwarding */
+#define        IPV6CTL_DEFHLIM         3       /* default Hop-Limit */
+#ifdef notyet
+#define        IPV6CTL_DEFMTU          4       /* default MTU */
+#endif
+#define        IPV6CTL_FORWSRCRT       5       /* forward source-routed dgrams */
+#define        IPV6CTL_STATS           6       /* stats */
+#define        IPV6CTL_MRTSTATS        7       /* multicast forwarding stats */
+#define        IPV6CTL_MRTPROTO        8       /* multicast routing protocol */
+#define        IPV6CTL_MAXFRAGPACKETS  9       /* max packets reassembly queue */
+#define        IPV6CTL_SOURCECHECK     10      /* verify source route and intf */
+#define        IPV6CTL_SOURCECHECK_LOGINT 11   /* minimume logging interval */
+#define        IPV6CTL_ACCEPT_RTADV    12
+#define        IPV6CTL_KEEPFAITH       13      /* deprecated */
+#define        IPV6CTL_LOG_INTERVAL    14
+#define        IPV6CTL_HDRNESTLIMIT    15
+#define        IPV6CTL_DAD_COUNT       16
+#define        IPV6CTL_AUTO_FLOWLABEL  17
+#define        IPV6CTL_DEFMCASTHLIM    18
+#define        IPV6CTL_GIF_HLIM        19      /* default HLIM for gif encap packet */
+#define        IPV6CTL_KAME_VERSION    20
+#define        IPV6CTL_USE_DEPRECATED  21      /* use deprec addr (RFC2462 5.5.4) */
+#define        IPV6CTL_RR_PRUNE        22      /* walk timer for router renumbering */
+#if 0  /* obsolete */
+#define        IPV6CTL_MAPPED_ADDR     23
+#endif
+#define        IPV6CTL_V6ONLY          24
+#define        IPV6CTL_RTEXPIRE        25      /* cloned route expiration time */
+#define        IPV6CTL_RTMINEXPIRE     26      /* min value for expiration time */
+#define        IPV6CTL_RTMAXCACHE      27      /* trigger level for dynamic expire */
+
+#define        IPV6CTL_USETEMPADDR     32      /* use temporary addresses [RFC 4941] */
+#define        IPV6CTL_TEMPPLTIME      33      /* preferred lifetime for tmpaddrs */
+#define        IPV6CTL_TEMPVLTIME      34      /* valid lifetime for tmpaddrs */
+#define        IPV6CTL_AUTO_LINKLOCAL  35      /* automatic link-local addr assign */
+#define        IPV6CTL_RIP6STATS       36      /* raw_ip6 stats */
+#define        IPV6CTL_PREFER_TEMPADDR 37      /* prefer temporary addr as src */
+#define        IPV6CTL_ADDRCTLPOLICY   38      /* get/set address selection policy */
+#define        IPV6CTL_USE_DEFAULTZONE 39      /* use default scope zone */
+
+#define        IPV6CTL_MAXFRAGS        41      /* max fragments */
+#define        IPV6CTL_MCAST_PMTU      44      /* enable pMTU discovery for mcast? */
+
+#define        IPV6CTL_NEIGHBORGCTHRESH 46
+#define        IPV6CTL_MAXIFPREFIXES   47
+#define        IPV6CTL_MAXIFDEFROUTERS 48
+#define        IPV6CTL_MAXDYNROUTES    49
+#define        ICMPV6CTL_ND6_ONLINKNSRFC4861   50

 
 

-#define CTL_IPV6PROTO_NAMES { \
+/* New entries should be added here from current IPV6CTL_MAXID value. */
+/* to define items, should talk with KAME guys first, for *BSD compatibility */
+#define        IPV6CTL_MAXID           51
+
+#ifdef BSD_KERNEL_PRIVATE
+#define        CTL_IPV6PROTO_NAMES { \

        { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
        { 0, 0 }, \
        { "tcp6", CTLTYPE_NODE }, \
        { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, { 0, 0 }, \
        { 0, 0 }, \
        { "tcp6", CTLTYPE_NODE }, \


@@ -525,132 +833,97 @@ struct in6_pktinfo {
        { 0, 0 }, \
        { 0, 0 }, \
        { 0, 0 }, \
        { 0, 0 }, \
        { 0, 0 }, \
        { 0, 0 }, \

-       { "pim6", CTLTYPE_NODE }, \
+       { 0, 0 }, \

 }
 }

-
-/*
- * Names for IP sysctl objects
- */
-#define IPV6CTL_FORWARDING     1       /* act as router */
-#define IPV6CTL_SENDREDIRECTS  2       /* may send redirects when forwarding*/
-#define IPV6CTL_DEFHLIM                3       /* default Hop-Limit */
-#ifdef notyet
-#define IPV6CTL_DEFMTU         4       /* default MTU */
-#endif
-#define IPV6CTL_FORWSRCRT      5       /* forward source-routed dgrams */
-#define IPV6CTL_STATS          6       /* stats */
-#define IPV6CTL_MRTSTATS       7       /* multicast forwarding stats */
-#define IPV6CTL_MRTPROTO       8       /* multicast routing protocol */
-#define IPV6CTL_MAXFRAGPACKETS 9       /* max packets reassembly queue */
-#define IPV6CTL_SOURCECHECK    10      /* verify source route and intf */
-#define IPV6CTL_SOURCECHECK_LOGINT 11  /* minimume logging interval */
-#define IPV6CTL_ACCEPT_RTADV   12
-#define IPV6CTL_KEEPFAITH      13
-#define IPV6CTL_LOG_INTERVAL   14
-#define IPV6CTL_HDRNESTLIMIT   15
-#define IPV6CTL_DAD_COUNT      16
-#define IPV6CTL_AUTO_FLOWLABEL 17
-#define IPV6CTL_DEFMCASTHLIM   18
-#define IPV6CTL_GIF_HLIM       19      /* default HLIM for gif encap packet */
-#define IPV6CTL_KAME_VERSION   20
-#define IPV6CTL_USE_DEPRECATED 21      /* use deprecated addr (RFC2462 5.5.4) */
-#define IPV6CTL_RR_PRUNE       22      /* walk timer for router renumbering */
-#if 0  /*obsolete*/
-#define IPV6CTL_MAPPED_ADDR    23
-#endif
-#define IPV6CTL_V6ONLY         24
-#define IPV6CTL_RTEXPIRE       25      /* cloned route expiration time */
-#define IPV6CTL_RTMINEXPIRE    26      /* min value for expiration time */
-#define IPV6CTL_RTMAXCACHE     27      /* trigger level for dynamic expire */
-
-#define IPV6CTL_USETEMPADDR    32      /* use temporary addresses (RFC3041) */
-#define IPV6CTL_TEMPPLTIME     33      /* preferred lifetime for tmpaddrs */
-#define IPV6CTL_TEMPVLTIME     34      /* valid lifetime for tmpaddrs */
-#define IPV6CTL_AUTO_LINKLOCAL 35      /* automatic link-local addr assign */
-#define IPV6CTL_RIP6STATS      36      /* raw_ip6 stats */
-
-/* New entries should be added here from current IPV6CTL_MAXID value. */
-/* to define items, should talk with KAME guys first, for *BSD compatibility */
-#define IPV6CTL_MAXID          37
-
-#endif /* !_XOPEN_SOURCE */
-

 /*
  * Redefinition of mbuf flags
  */
 #define        M_AUTHIPHDR     M_PROTO2
 #define        M_DECRYPTED     M_PROTO3
 /*
  * Redefinition of mbuf flags
  */
 #define        M_AUTHIPHDR     M_PROTO2
 #define        M_DECRYPTED     M_PROTO3

-#define        M_LOOP          M_PROTO4

 #define        M_AUTHIPDGM     M_PROTO5
 
 #define        M_AUTHIPDGM     M_PROTO5
 

-#ifdef KERNEL
-#ifdef __APPLE_API_PRIVATE

 struct cmsghdr;
 struct mbuf;
 struct ifnet;
 struct in6_aliasreq;
 
 struct cmsghdr;
 struct mbuf;
 struct ifnet;
 struct in6_aliasreq;
 

-int    in6_cksum __P((struct mbuf *, u_int8_t, u_int32_t, u_int32_t));
-int    in6_localaddr __P((struct in6_addr *));
-int    in6_addrscope __P((struct in6_addr *));
-struct in6_ifaddr *in6_ifawithscope __P((struct ifnet *, struct in6_addr *));
-struct in6_ifaddr *in6_ifawithifp __P((struct ifnet *, struct in6_addr *));
-extern void in6_if_up __P((struct ifnet *, struct in6_aliasreq *));
+extern uint16_t in6_pseudo(const struct in6_addr *, const struct in6_addr *,
+    uint32_t);
+extern u_int16_t inet6_cksum(struct mbuf *, uint32_t, uint32_t, uint32_t);
+
+#define        in6_cksum(_m, _n, _o, _l)               \
+       inet6_cksum(_m, _n, _o, _l)
+
+extern int in6_addrscope(struct in6_addr *);
+extern struct in6_ifaddr *in6_ifawithscope(struct ifnet *, struct in6_addr *);
+extern struct in6_ifaddr *in6_ifawithifp(struct ifnet *, struct in6_addr *);
+

 struct sockaddr;
 
 struct sockaddr;
 

-void   in6_sin6_2_sin __P((struct sockaddr_in *sin,
-                           struct sockaddr_in6 *sin6));
-void   in6_sin_2_v4mapsin6 __P((struct sockaddr_in *sin,
-                                struct sockaddr_in6 *sin6));
-void   in6_sin6_2_sin_in_sock __P((struct sockaddr *nam));
-void   in6_sin_2_v4mapsin6_in_sock __P((struct sockaddr **nam));
-
-#define        satosin6(sa)    ((struct sockaddr_in6 *)(sa))
-#define        sin6tosa(sin6)  ((struct sockaddr *)(sin6))
-#define        ifatoia6(ifa)   ((struct in6_ifaddr *)(ifa))
-#endif /* __APPLE_API_PRIVATE */
-#endif /* KERNEL */
+extern void in6_sin6_2_sin(struct sockaddr_in *sin, struct sockaddr_in6 *sin6);
+extern void in6_sin_2_v4mapsin6(struct sockaddr_in *sin,
+    struct sockaddr_in6 *sin6);
+extern void in6_sin6_2_sin_in_sock(struct sockaddr *nam);
+extern int in6_sin_2_v4mapsin6_in_sock(struct sockaddr **nam);

 
 

+extern uint32_t in6_finalize_cksum(struct mbuf *, uint32_t, int32_t,
+    int32_t, uint32_t);
+
+#define        in6_delayed_cksum(_m)                   \
+       ((void) in6_finalize_cksum(_m, 0, 0, -1, CSUM_DELAY_IPV6_DATA))
+#define        in6_delayed_cksum_offset(_m, _o, _s, _p)        \
+       ((void) in6_finalize_cksum(_m, _o, _s, _p, CSUM_DELAY_IPV6_DATA))
+#endif /* BSD_KERNEL_PRIVATE */
+
+#ifdef KERNEL_PRIVATE
+/* exporte for ApplicationFirewall */
+extern int in6_localaddr(struct in6_addr *);
+extern int in6addr_local(struct in6_addr *);
+#endif /* KERNEL_PRIVATE */
+
+#ifndef KERNEL

 __BEGIN_DECLS
 struct cmsghdr;
 
 __BEGIN_DECLS
 struct cmsghdr;
 

-extern int inet6_option_space __P((int));
-extern int inet6_option_init __P((void *, struct cmsghdr **, int));
-extern int inet6_option_append __P((struct cmsghdr *, const u_int8_t *,
-       int, int));
-extern u_int8_t *inet6_option_alloc __P((struct cmsghdr *, int, int, int));
-extern int inet6_option_next __P((const struct cmsghdr *, u_int8_t **));
-extern int inet6_option_find __P((const struct cmsghdr *, u_int8_t **, int));
-
-extern size_t inet6_rthdr_space __P((int, int));
-extern struct cmsghdr *inet6_rthdr_init __P((void *, int));
-extern int inet6_rthdr_add __P((struct cmsghdr *, const struct in6_addr *,
-               unsigned int));
-extern int inet6_rthdr_lasthop __P((struct cmsghdr *, unsigned int));
+extern int inet6_option_space(int);
+extern int inet6_option_init(void *, struct cmsghdr **, int);
+extern int inet6_option_append(struct cmsghdr *, const __uint8_t *, int, int);
+extern __uint8_t *inet6_option_alloc(struct cmsghdr *, int, int, int);
+extern int inet6_option_next(const struct cmsghdr *, __uint8_t **);
+extern int inet6_option_find(const struct cmsghdr *, __uint8_t **, int);
+
+extern size_t inet6_rthdr_space(int, int);
+extern struct cmsghdr *inet6_rthdr_init(void *, int);
+extern int inet6_rthdr_add(struct cmsghdr *, const struct in6_addr *,
+    unsigned int);
+extern int inet6_rthdr_lasthop(struct cmsghdr *, unsigned int);

 #if 0 /* not implemented yet */
 #if 0 /* not implemented yet */

-extern int inet6_rthdr_reverse __P((const struct cmsghdr *, struct cmsghdr *));
+extern int inet6_rthdr_reverse(const struct cmsghdr *, struct cmsghdr *);

 #endif
 #endif

-extern int inet6_rthdr_segments __P((const struct cmsghdr *));
-extern struct in6_addr *inet6_rthdr_getaddr __P((struct cmsghdr *, int));
-extern int inet6_rthdr_getflags __P((const struct cmsghdr *, int));
-
-extern int inet6_opt_init __P((void *, size_t));
-extern int inet6_opt_append __P((void *, size_t, int, u_int8_t,
-                                size_t, u_int8_t, void **));
-extern int inet6_opt_finish __P((void *, size_t, int));
-extern int inet6_opt_set_val __P((void *, size_t, void *, int));
-
-extern int inet6_opt_next __P((void *, size_t, int, u_int8_t *,
-                              size_t *, void **));
-extern int inet6_opt_find __P((void *, size_t, int, u_int8_t,
-                         size_t *, void **));
-extern int inet6_opt_get_val __P((void *, size_t, void *, int));
-extern size_t inet6_rth_space __P((int, int));
-extern void *inet6_rth_init __P((void *, int, int, int));
-extern int inet6_rth_add __P((void *, const struct in6_addr *));
-extern int inet6_rth_reverse __P((const void *, void *));
-extern int inet6_rth_segments __P((const void *));
-extern struct in6_addr *inet6_rth_getaddr __P((const void *, int));
-__END_DECLS
+extern int inet6_rthdr_segments(const struct cmsghdr *);
+extern struct in6_addr *inet6_rthdr_getaddr(struct cmsghdr *, int);
+extern int inet6_rthdr_getflags(const struct cmsghdr *, int);
+
+extern int inet6_opt_init(void *, socklen_t);
+extern int inet6_opt_append(void *, socklen_t, int, __uint8_t, socklen_t,
+    __uint8_t, void **);
+extern int inet6_opt_finish(void *, socklen_t, int);
+extern int inet6_opt_set_val(void *, int, void *, socklen_t);
+
+extern int inet6_opt_next(void *, socklen_t, int, __uint8_t *, socklen_t *,
+    void **);
+extern int inet6_opt_find(void *, socklen_t, int, __uint8_t, socklen_t *,
+    void **);
+extern int inet6_opt_get_val(void *, int, void *, socklen_t);
+extern socklen_t inet6_rth_space(int, int);
+extern void *inet6_rth_init(void *, socklen_t, int, int);
+extern int inet6_rth_add(void *, const struct in6_addr *);
+extern int inet6_rth_reverse(const void *, void *);
+extern int inet6_rth_segments(const void *);
+extern struct in6_addr *inet6_rth_getaddr(const void *, int);
+extern void addrsel_policy_init(void);

 
 

+__END_DECLS
+#endif /* !KERNEL */
+#endif /* (_POSIX_C_SOURCE && !_DARWIN_C_SOURCE) */

 #endif /* !_NETINET6_IN6_H_ */
 #endif /* !_NETINET6_IN6_H_ */