diff options
Diffstat (limited to 'newlib/libc/sys/linux/include/netinet6/ip6_var.h')
| -rw-r--r-- | newlib/libc/sys/linux/include/netinet6/ip6_var.h | 354 |
1 files changed, 354 insertions, 0 deletions
diff --git a/newlib/libc/sys/linux/include/netinet6/ip6_var.h b/newlib/libc/sys/linux/include/netinet6/ip6_var.h new file mode 100644 index 000000000..d93ade77d --- /dev/null +++ b/newlib/libc/sys/linux/include/netinet6/ip6_var.h @@ -0,0 +1,354 @@ +/* $FreeBSD: src/sys/netinet6/ip6_var.h,v 1.8 2001/09/12 08:37:55 julian Exp $ */ +/* $KAME: ip6_var.h,v 1.62 2001/05/03 14:51:48 itojun Exp $ */ + +/* + * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the name of the project nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +/* + * Copyright (c) 1982, 1986, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)ip_var.h 8.1 (Berkeley) 6/10/93 + */ + +#ifndef _NETINET6_IP6_VAR_H_ +#define _NETINET6_IP6_VAR_H_ + +/* + * IP6 reassembly queue structure. Each fragment + * being reassembled is attached to one of these structures. + */ +struct ip6q { + u_int32_t ip6q_head; + u_int16_t ip6q_len; + u_int8_t ip6q_nxt; /* ip6f_nxt in first fragment */ + u_int8_t ip6q_hlim; + struct ip6asfrag *ip6q_down; + struct ip6asfrag *ip6q_up; + u_int32_t ip6q_ident; + u_int8_t ip6q_arrive; + u_int8_t ip6q_ttl; + struct in6_addr ip6q_src, ip6q_dst; + struct ip6q *ip6q_next; + struct ip6q *ip6q_prev; + int ip6q_unfrglen; /* len of unfragmentable part */ +#ifdef notyet + u_char *ip6q_nxtp; +#endif +}; + +struct ip6asfrag { + u_int32_t ip6af_head; + u_int16_t ip6af_len; + u_int8_t ip6af_nxt; + u_int8_t ip6af_hlim; + /* must not override the above members during reassembling */ + struct ip6asfrag *ip6af_down; + struct ip6asfrag *ip6af_up; + struct mbuf *ip6af_m; + int ip6af_offset; /* offset in ip6af_m to next header */ + int ip6af_frglen; /* fragmentable part length */ + int ip6af_off; /* fragment offset */ + u_int16_t ip6af_mff; /* more fragment bit in frag off */ +}; + +#define IP6_REASS_MBUF(ip6af) (*(struct mbuf **)&((ip6af)->ip6af_m)) + +struct ip6_moptions { + struct ifnet *im6o_multicast_ifp; /* ifp for outgoing multicasts */ + u_char im6o_multicast_hlim; /* hoplimit for outgoing multicasts */ + u_char im6o_multicast_loop; /* 1 >= hear sends if a member */ + LIST_HEAD(, in6_multi_mship) im6o_memberships; +}; + +/* + * Control options for outgoing packets + */ + +/* Routing header related info */ +struct ip6po_rhinfo { + struct ip6_rthdr *ip6po_rhi_rthdr; /* Routing header */ + struct route_in6 ip6po_rhi_route; /* Route to the 1st hop */ +}; +#define ip6po_rthdr ip6po_rhinfo.ip6po_rhi_rthdr +#define ip6po_route ip6po_rhinfo.ip6po_rhi_route + +struct ip6_pktopts { + struct mbuf *ip6po_m; /* Pointer to mbuf storing the data */ + int ip6po_hlim; /* Hoplimit for outgoing packets */ + + /* Outgoing IF/address information */ + struct in6_pktinfo *ip6po_pktinfo; + + struct sockaddr *ip6po_nexthop; /* Next-hop address */ + + struct ip6_hbh *ip6po_hbh; /* Hop-by-Hop options header */ + + /* Destination options header (before a routing header) */ + struct ip6_dest *ip6po_dest1; + + /* Routing header related info. */ + struct ip6po_rhinfo ip6po_rhinfo; + + /* Destination options header (after a routing header) */ + struct ip6_dest *ip6po_dest2; +}; + +/* + * Control options for incoming packets + */ + +struct ip6stat { + u_quad_t ip6s_total; /* total packets received */ + u_quad_t ip6s_tooshort; /* packet too short */ + u_quad_t ip6s_toosmall; /* not enough data */ + u_quad_t ip6s_fragments; /* fragments received */ + u_quad_t ip6s_fragdropped; /* frags dropped(dups, out of space) */ + u_quad_t ip6s_fragtimeout; /* fragments timed out */ + u_quad_t ip6s_fragoverflow; /* fragments that exceeded limit */ + u_quad_t ip6s_forward; /* packets forwarded */ + u_quad_t ip6s_cantforward; /* packets rcvd for unreachable dest */ + u_quad_t ip6s_redirectsent; /* packets forwarded on same net */ + u_quad_t ip6s_delivered; /* datagrams delivered to upper level*/ + u_quad_t ip6s_localout; /* total ip packets generated here */ + u_quad_t ip6s_odropped; /* lost packets due to nobufs, etc. */ + u_quad_t ip6s_reassembled; /* total packets reassembled ok */ + u_quad_t ip6s_fragmented; /* datagrams sucessfully fragmented */ + u_quad_t ip6s_ofragments; /* output fragments created */ + u_quad_t ip6s_cantfrag; /* don't fragment flag was set, etc. */ + u_quad_t ip6s_badoptions; /* error in option processing */ + u_quad_t ip6s_noroute; /* packets discarded due to no route */ + u_quad_t ip6s_badvers; /* ip6 version != 6 */ + u_quad_t ip6s_rawout; /* total raw ip packets generated */ + u_quad_t ip6s_badscope; /* scope error */ + u_quad_t ip6s_notmember; /* don't join this multicast group */ + u_quad_t ip6s_nxthist[256]; /* next header history */ + u_quad_t ip6s_m1; /* one mbuf */ + u_quad_t ip6s_m2m[32]; /* two or more mbuf */ + u_quad_t ip6s_mext1; /* one ext mbuf */ + u_quad_t ip6s_mext2m; /* two or more ext mbuf */ + u_quad_t ip6s_exthdrtoolong; /* ext hdr are not continuous */ + u_quad_t ip6s_nogif; /* no match gif found */ + u_quad_t ip6s_toomanyhdr; /* discarded due to too many headers */ + + /* + * statistics for improvement of the source address selection + * algorithm: + * XXX: hardcoded 16 = # of ip6 multicast scope types + 1 + */ + /* number of times that address selection fails */ + u_quad_t ip6s_sources_none; + /* number of times that an address on the outgoing I/F is chosen */ + u_quad_t ip6s_sources_sameif[16]; + /* number of times that an address on a non-outgoing I/F is chosen */ + u_quad_t ip6s_sources_otherif[16]; + /* + * number of times that an address that has the same scope + * from the destination is chosen. + */ + u_quad_t ip6s_sources_samescope[16]; + /* + * number of times that an address that has a different scope + * from the destination is chosen. + */ + u_quad_t ip6s_sources_otherscope[16]; + /* number of times that an deprecated address is chosen */ + u_quad_t ip6s_sources_deprecated[16]; + + u_quad_t ip6s_forward_cachehit; + u_quad_t ip6s_forward_cachemiss; +}; + +#ifdef _KERNEL +/* + * IPv6 onion peeling state. + * it will be initialized when we come into ip6_input(). + * XXX do not make it a kitchen sink! + */ +struct ip6aux { + u_int32_t ip6a_flags; +#define IP6A_SWAP 0x01 /* swapped home/care-of on packet */ +#define IP6A_HASEEN 0x02 /* HA was present */ +#define IP6A_BRUID 0x04 /* BR Unique Identifier was present */ +#define IP6A_RTALERTSEEN 0x08 /* rtalert present */ + + /* ip6.ip6_src */ + struct in6_addr ip6a_careof; /* care-of address of the peer */ + struct in6_addr ip6a_home; /* home address of the peer */ + u_int16_t ip6a_bruid; /* BR unique identifier */ + + /* ip6.ip6_dst */ + struct in6_ifaddr *ip6a_dstia6; /* my ifaddr that matches ip6_dst */ + + /* rtalert */ + u_int16_t ip6a_rtalert; /* rtalert option value */ + + /* + * decapsulation history will be here. + * with IPsec it may not be accurate. + */ +}; +#endif + +#ifdef _KERNEL +/* flags passed to ip6_output as last parameter */ +#define IPV6_DADOUTPUT 0x01 /* DAD */ +#define IPV6_FORWARDING 0x02 /* most of IPv6 header exists */ +#define IPV6_MINMTU 0x04 /* use minimum MTU (IPV6_USE_MIN_MTU) */ + +extern struct ip6stat ip6stat; /* statistics */ +extern u_int32_t ip6_id; /* fragment identifier */ +extern int ip6_defhlim; /* default hop limit */ +extern int ip6_defmcasthlim; /* default multicast hop limit */ +extern int ip6_forwarding; /* act as router? */ +extern int ip6_forward_srcrt; /* forward src-routed? */ +extern int ip6_gif_hlim; /* Hop limit for gif encap packet */ +extern int ip6_use_deprecated; /* allow deprecated addr as source */ +extern int ip6_rr_prune; /* router renumbering prefix + * walk list every 5 sec. */ +#define ip6_mapped_addr_on (!ip6_v6only) +extern int ip6_v6only; + +extern struct socket *ip6_mrouter; /* multicast routing daemon */ +extern int ip6_sendredirects; /* send IP redirects when forwarding? */ +extern int ip6_maxfragpackets; /* Maximum packets in reassembly queue */ +extern int ip6_sourcecheck; /* Verify source interface */ +extern int ip6_sourcecheck_interval; /* Interval between log messages */ +extern int ip6_accept_rtadv; /* Acts as a host not a router */ +extern int ip6_keepfaith; /* Firewall Aided Internet Translator */ +extern int ip6_log_interval; +extern time_t ip6_log_time; +extern int ip6_hdrnestlimit; /* upper limit of # of extension headers */ +extern int ip6_dad_count; /* DupAddrDetectionTransmits */ + +extern u_int32_t ip6_flow_seq; +extern int ip6_auto_flowlabel; +extern int ip6_auto_linklocal; + +extern int ip6_anonportmin; /* minimum ephemeral port */ +extern int ip6_anonportmax; /* maximum ephemeral port */ +extern int ip6_lowportmin; /* minimum reserved port */ +extern int ip6_lowportmax; /* maximum reserved port */ + +extern int ip6_use_tempaddr; /* whether to use temporary addresses. */ + +extern struct pr_usrreqs rip6_usrreqs; +struct sockopt; + +struct inpcb; + +int icmp6_ctloutput __P((struct socket *, struct sockopt *sopt)); + +struct in6_ifaddr; +void ip6_init __P((void)); +void ip6intr __P((void)); +void ip6_input __P((struct mbuf *)); +struct in6_ifaddr *ip6_getdstifaddr __P((struct mbuf *)); +void ip6_freepcbopts __P((struct ip6_pktopts *)); +void ip6_freemoptions __P((struct ip6_moptions *)); +int ip6_unknown_opt __P((u_int8_t *, struct mbuf *, int)); +char * ip6_get_prevhdr __P((struct mbuf *, int)); +int ip6_nexthdr __P((struct mbuf *, int, int, int *)); +int ip6_lasthdr __P((struct mbuf *, int, int, int *)); + +struct mbuf *ip6_addaux __P((struct mbuf *)); +struct mbuf *ip6_findaux __P((struct mbuf *)); +void ip6_delaux __P((struct mbuf *)); + +int ip6_mforward __P((struct ip6_hdr *, struct ifnet *, struct mbuf *)); +int ip6_process_hopopts __P((struct mbuf *, u_int8_t *, int, u_int32_t *, + u_int32_t *)); +void ip6_savecontrol __P((struct inpcb *, struct mbuf **, struct ip6_hdr *, + struct mbuf *)); +void ip6_notify_pmtu __P((struct inpcb *, struct sockaddr_in6 *, + u_int32_t *)); +int ip6_sysctl __P((int *, u_int, void *, size_t *, void *, size_t)); + +void ip6_forward __P((struct mbuf *, int)); + +void ip6_mloopback __P((struct ifnet *, struct mbuf *, struct sockaddr_in6 *)); +int ip6_output __P((struct mbuf *, struct ip6_pktopts *, + struct route_in6 *, + int, + struct ip6_moptions *, struct ifnet **)); +int ip6_ctloutput __P((struct socket *, struct sockopt *sopt)); +void init_ip6pktopts __P((struct ip6_pktopts *)); +int ip6_setpktoptions __P((struct mbuf *, struct ip6_pktopts *, int, int)); +void ip6_clearpktopts __P((struct ip6_pktopts *, int, int)); +struct ip6_pktopts *ip6_copypktopts __P((struct ip6_pktopts *, int)); +int ip6_optlen __P((struct inpcb *)); + +int route6_input __P((struct mbuf **, int *, int)); + +void frag6_init __P((void)); +int frag6_input __P((struct mbuf **, int *, int)); +void frag6_slowtimo __P((void)); +void frag6_drain __P((void)); + +void rip6_init __P((void)); +int rip6_input __P((struct mbuf **mp, int *offp, int proto)); +void rip6_ctlinput __P((int, struct sockaddr *, void *)); +int rip6_ctloutput __P((struct socket *so, struct sockopt *sopt)); +int rip6_output __P((struct mbuf *, ...)); +int rip6_usrreq __P((struct socket *, + int, struct mbuf *, struct mbuf *, struct mbuf *, struct thread *)); + +int dest6_input __P((struct mbuf **, int *, int)); +int none_input __P((struct mbuf **, int *, int)); +#endif /* _KERNEL */ + +#endif /* !_NETINET6_IP6_VAR_H_ */ |