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-rw-r--r--pfinet/linux-src/include/net/ipv6.h325
1 files changed, 325 insertions, 0 deletions
diff --git a/pfinet/linux-src/include/net/ipv6.h b/pfinet/linux-src/include/net/ipv6.h
new file mode 100644
index 00000000..50e2299f
--- /dev/null
+++ b/pfinet/linux-src/include/net/ipv6.h
@@ -0,0 +1,325 @@
+/*
+ * Linux INET6 implementation
+ *
+ * Authors:
+ * Pedro Roque <roque@di.fc.ul.pt>
+ *
+ * $Id: ipv6.h,v 1.16 1999/04/22 10:07:27 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.
+ */
+
+#ifndef _NET_IPV6_H
+#define _NET_IPV6_H
+
+#include <linux/ipv6.h>
+#include <asm/hardirq.h>
+#include <net/ndisc.h>
+#include <net/flow.h>
+
+/*
+ * 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 frag_hdr {
+ unsigned char nexthdr;
+ unsigned char reserved;
+ unsigned short frag_off;
+ __u32 identification;
+};
+
+#ifdef __KERNEL__
+
+#include <net/sock.h>
+
+extern struct ipv6_mib ipv6_statistics;
+extern struct icmpv6_mib icmpv6_statistics;
+extern struct udp_mib udp_stats_in6;
+
+struct ip6_ra_chain
+{
+ struct ip6_ra_chain *next;
+ struct sock *sk;
+ int sel;
+ void (*destructor)(struct sock *);
+};
+
+extern struct ip6_ra_chain *ip6_ra_chain;
+
+/*
+ This structure is prepared by protocol, when parsing
+ ancillary data and passed to IPv6.
+ */
+
+struct ipv6_txoptions
+{
+ /* Length of this structure */
+ int tot_len;
+
+ /* length of extension headers */
+
+ __u16 opt_flen; /* after fragment hdr */
+ __u16 opt_nflen; /* before fragment hdr */
+
+ struct ipv6_opt_hdr *hopopt;
+ struct ipv6_opt_hdr *dst0opt;
+ struct ipv6_rt_hdr *srcrt; /* Routing Header */
+ struct ipv6_opt_hdr *auth;
+ struct ipv6_opt_hdr *dst1opt;
+
+ /* Option buffer, as read by IPV6_PKTOPTIONS, starts here. */
+};
+
+struct ip6_flowlabel
+{
+ struct ip6_flowlabel *next;
+ u32 label;
+ struct in6_addr dst;
+ struct ipv6_txoptions *opt;
+ atomic_t users;
+ u32 linger;
+ u8 share;
+ u32 owner;
+ unsigned long lastuse;
+ unsigned long expires;
+};
+
+#define IPV6_FLOWINFO_MASK __constant_htonl(0x0FFFFFFF)
+#define IPV6_FLOWLABEL_MASK __constant_htonl(0x000FFFFF)
+
+struct ipv6_fl_socklist
+{
+ struct ipv6_fl_socklist *next;
+ struct ip6_flowlabel *fl;
+};
+
+extern struct ip6_flowlabel *fl6_sock_lookup(struct sock *sk, u32 label);
+extern struct ipv6_txoptions *fl6_merge_options(struct ipv6_txoptions * opt_space,
+ struct ip6_flowlabel * fl,
+ struct ipv6_txoptions * fopt);
+extern void fl6_free_socklist(struct sock *sk);
+extern int ipv6_flowlabel_opt(struct sock *sk, char *optval, int optlen);
+extern void ip6_flowlabel_init(void);
+extern void ip6_flowlabel_cleanup(void);
+
+extern __inline__ void fl6_sock_release(struct ip6_flowlabel *fl)
+{
+ if (fl)
+ atomic_dec(&fl->users);
+}
+
+extern int ip6_ra_control(struct sock *sk, int sel,
+ void (*destructor)(struct sock *));
+
+
+extern int ip6_call_ra_chain(struct sk_buff *skb, int sel);
+
+extern u8 * ipv6_reassembly(struct sk_buff **skb, u8 *nhptr);
+
+extern u8 * ipv6_parse_hopopts(struct sk_buff *skb, u8 *nhptr);
+
+extern u8 * ipv6_parse_exthdrs(struct sk_buff **skb, u8 *nhptr);
+
+extern struct ipv6_txoptions * ipv6_dup_options(struct sock *sk, struct ipv6_txoptions *opt);
+
+#define IPV6_FRAG_TIMEOUT (60*HZ) /* 60 seconds */
+
+/*
+ * Function prototype for build_xmit
+ */
+
+typedef int (*inet_getfrag_t) (const void *data,
+ struct in6_addr *addr,
+ char *,
+ unsigned int, unsigned int);
+
+
+extern int ipv6_addr_type(struct in6_addr *addr);
+
+extern __inline__ int ipv6_addr_scope(struct in6_addr *addr)
+{
+ return ipv6_addr_type(addr) & IPV6_ADDR_SCOPE_MASK;
+}
+
+extern __inline__ int ipv6_addr_cmp(struct in6_addr *a1, struct in6_addr *a2)
+{
+ return memcmp((void *) a1, (void *) a2, sizeof(struct in6_addr));
+}
+
+extern __inline__ void ipv6_addr_copy(struct in6_addr *a1, struct in6_addr *a2)
+{
+ memcpy((void *) a1, (void *) a2, sizeof(struct in6_addr));
+}
+
+#ifndef __HAVE_ARCH_ADDR_SET
+extern __inline__ void ipv6_addr_set(struct in6_addr *addr,
+ __u32 w1, __u32 w2,
+ __u32 w3, __u32 w4)
+{
+ addr->s6_addr32[0] = w1;
+ addr->s6_addr32[1] = w2;
+ addr->s6_addr32[2] = w3;
+ addr->s6_addr32[3] = w4;
+}
+#endif
+
+extern __inline__ int ipv6_addr_any(struct in6_addr *a)
+{
+ return ((a->s6_addr32[0] | a->s6_addr32[1] |
+ a->s6_addr32[2] | a->s6_addr32[3] ) == 0);
+}
+
+/*
+ * Prototypes exported by ipv6
+ */
+
+/*
+ * rcv function (called from netdevice level)
+ */
+
+extern int ipv6_rcv(struct sk_buff *skb,
+ struct device *dev,
+ struct packet_type *pt);
+
+/*
+ * upper-layer output functions
+ */
+extern int ip6_xmit(struct sock *sk,
+ struct sk_buff *skb,
+ struct flowi *fl,
+ struct ipv6_txoptions *opt);
+
+extern int ip6_nd_hdr(struct sock *sk,
+ struct sk_buff *skb,
+ struct device *dev,
+ struct in6_addr *saddr,
+ struct in6_addr *daddr,
+ int proto, int len);
+
+extern int ip6_build_xmit(struct sock *sk,
+ inet_getfrag_t getfrag,
+ const void *data,
+ struct flowi *fl,
+ unsigned length,
+ struct ipv6_txoptions *opt,
+ int hlimit, int flags);
+
+/*
+ * skb processing functions
+ */
+
+extern int ip6_output(struct sk_buff *skb);
+extern int ip6_forward(struct sk_buff *skb);
+extern int ip6_input(struct sk_buff *skb);
+extern int ip6_mc_input(struct sk_buff *skb);
+
+/*
+ * Extension header (options) processing
+ */
+
+extern u8 * ipv6_build_nfrag_opts(struct sk_buff *skb,
+ u8 *prev_hdr,
+ struct ipv6_txoptions *opt,
+ struct in6_addr *daddr,
+ u32 jumbolen);
+extern u8 * ipv6_build_frag_opts(struct sk_buff *skb,
+ u8 *prev_hdr,
+ struct ipv6_txoptions *opt);
+extern void ipv6_push_nfrag_opts(struct sk_buff *skb,
+ struct ipv6_txoptions *opt,
+ u8 *proto,
+ struct in6_addr **daddr_p);
+extern void ipv6_push_frag_opts(struct sk_buff *skb,
+ struct ipv6_txoptions *opt,
+ u8 *proto);
+
+extern u8 * ipv6_skip_exthdr(struct ipv6_opt_hdr *hdr,
+ u8 *nexthdrp, int len);
+
+extern struct ipv6_txoptions * ipv6_invert_rthdr(struct sock *sk,
+ struct ipv6_rt_hdr *hdr);
+
+
+/*
+ * socket options (ipv6_sockglue.c)
+ */
+
+extern int ipv6_setsockopt(struct sock *sk, int level,
+ int optname, char *optval,
+ int optlen);
+extern int ipv6_getsockopt(struct sock *sk, int level,
+ int optname, char *optval,
+ int *optlen);
+
+extern void ipv6_packet_init(void);
+
+extern void ipv6_netdev_notif_init(void);
+
+extern void ipv6_packet_cleanup(void);
+
+extern void ipv6_netdev_notif_cleanup(void);
+
+extern int ipv6_recv_error(struct sock *sk, struct msghdr *msg, int len);
+extern void ipv6_icmp_error(struct sock *sk, struct sk_buff *skb, int err, u16 port,
+ u32 info, u8 *payload);
+extern void ipv6_local_error(struct sock *sk, int err, struct flowi *fl, u32 info);
+
+#endif /* __KERNEL__ */
+#endif /* _NET_IPV6_H */
+
+
+
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