--- /dev/null
+/*!\file netinet/ipv6.h
+ * Linux IPv6 definitions.
+ */
+
+/*
+ * Linux INET6 implementation
+ *
+ * Authors:
+ * Pedro Roque <roque@di.fc.ul.pt>
+ *
+ * $Id: ipv6.h,v 1.6 1997/04/01 02:22:58 davem Exp $
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ *
+ * NB! Don't ue this file. Use <netinet/in.h> instread.
+ */
+
+#ifndef _NET_IPV6_H
+#define _NET_IPV6_H
+
+#ifndef __NETINET_IN_H
+#include <netinet/in.h> /* in6_addr */
+#endif
+
+/*
+ * Advanced API
+ * source interface/address selection, source routing, etc...
+ * *under construction*
+ */
+
+#include <sys/packon.h>
+
+/*
+ * IPv6 fixed header
+ */
+struct ipv6hdr {
+ unsigned char ipv6_priority:4;
+ unsigned char ipv6_version:4;
+ unsigned char ipv6_flow_lbl[3];
+ unsigned short ipv6_len;
+ unsigned char ipv6_nextheader;
+ unsigned char ipv6_hoplimit;
+ struct in6_addr ipv6_src;
+ struct in6_addr ipv6_dst;
+ };
+
+
+
+/*
+ * The length of this struct cannot be greater than the length of
+ * the proto_priv field in a sk_buff which is currently
+ * defined to be 16 bytes.
+ * Pointers take upto 8 bytes (sizeof(void *) is 8 on the alpha).
+ */
+struct ipv6_options {
+ /* length of extension headers */
+ unsigned short opt_flen; /* after fragment hdr */
+ unsigned short opt_nflen; /* before fragment hdr */
+ /*
+ * protocol options
+ * usualy carried in IPv6 extension headers
+ */
+ struct ipv6_rt_hdr *srcrt; /* Routing Header */
+ };
+
+struct in6_pktinfo {
+ struct in6_addr ipi6_addr;
+ int ipi6_ifindex;
+ };
+
+
+struct in6_ifreq {
+ struct in6_addr ifr6_addr;
+ unsigned long ifr6_prefixlen;
+ unsigned long ifr6_ifindex;
+ };
+
+#define IPV6_SRCRT_STRICT 0x01 /* this hop must be a neighbor */
+#define IPV6_SRCRT_TYPE_0 0 /* IPv6 type 0 Routing Header */
+
+/*
+ * routing header
+ */
+struct ipv6_rt_hdr {
+ unsigned char nexthdr;
+ unsigned char hdrlen;
+ unsigned char type;
+ unsigned char segments_left;
+ /*
+ * type specific data
+ * variable length field
+ */
+ };
+
+/*
+ * routing header type 0 (used in cmsghdr struct)
+ */
+struct ipv6_rt0_hdr {
+ struct ipv6_rt_hdr rt_hdr;
+ unsigned long bitmap; /* strict/loose bit map */
+#ifndef __WATCOMC__
+ struct in6_addr addr[0];
+#endif
+#define rt0_type rt_hdr.type;
+ };
+
+/*
+ * NextHeader field of IPv6 header
+ */
+
+#define NEXTHDR_HOP 0 /* Hop-by-hop option header. */
+#define NEXTHDR_TCP 6 /* TCP segment. */
+#define NEXTHDR_UDP 17 /* UDP message. */
+#define NEXTHDR_IPV6 41 /* IPv6 in IPv6 */
+#define NEXTHDR_ROUTING 43 /* Routing header. */
+#define NEXTHDR_FRAGMENT 44 /* Fragmentation/reassembly header. */
+#define NEXTHDR_ESP 50 /* Encapsulating security payload. */
+#define NEXTHDR_AUTH 51 /* Authentication header. */
+#define NEXTHDR_ICMP 58 /* ICMP for IPv6. */
+#define NEXTHDR_NONE 59 /* No next header */
+#define NEXTHDR_DEST 60 /* Destination options header. */
+
+#define NEXTHDR_MAX 255
+
+
+#define IPV6_DEFAULT_HOPLIMIT 64
+#define IPV6_DEFAULT_MCASTHOPS 1
+
+/*
+ * Addr type
+ *
+ * type - unicast | multicast | anycast
+ * scope - local | site | global
+ * v4 - compat
+ * v4mapped
+ * any
+ * loopback
+ */
+
+#define IPV6_ADDR_ANY 0x0000U
+
+#define IPV6_ADDR_UNICAST 0x0001U
+#define IPV6_ADDR_MULTICAST 0x0002U
+#define IPV6_ADDR_ANYCAST 0x0004U
+
+#define IPV6_ADDR_LOOPBACK 0x0010U
+#define IPV6_ADDR_LINKLOCAL 0x0020U
+#define IPV6_ADDR_SITELOCAL 0x0040U
+
+#define IPV6_ADDR_COMPATv4 0x0080U
+
+#define IPV6_ADDR_SCOPE_MASK 0x00f0U
+
+#define IPV6_ADDR_MAPPED 0x1000U
+#define IPV6_ADDR_RESERVED 0x2000U /* reserved address space */
+
+/*
+ * fragmentation header
+ */
+
+struct ipv6_fraghdr {
+ unsigned char nexthdr;
+ unsigned char reserved;
+ unsigned short frag_off;
+ unsigned long identification;
+ };
+#define fraghdr ipv6_fraghdr
+
+#include <sys/packoff.h>
+
+#endif
+
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