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/*!\file netinet6/ip6_var.h |
* |
*/ |
|
/* $FreeBSD: src/sys/netinet6/ip6_var.h,v 1.9 2002/07/25 17:40:45 ume 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_ |
|
#include <sys/queue.h> |
|
#if !defined(__BORLANDC__) /* stop warnings for undefined structs */ |
/* |
* 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(dummy, in6_multi_mship) im6o_memberships; |
}; |
#endif /* __BORLANDC__ */ |
|
#ifndef _NETINET6_IN6_H_ |
struct route_in6 { |
struct rtentry *ro_rt; |
struct sockaddr_in6 ro_dst; |
}; |
#endif |
|
/* |
* Control options for outgoing packets |
*/ |
|
/* Routing header related info */ |
#if !defined(__BORLANDC__) |
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; |
}; |
#endif /* __BORLANDC__ */ |
|
/* |
* 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. */ |
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 *)); |
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struct mbuf *ip6_addaux __P((struct mbuf *)); |
struct mbuf *ip6_findaux __P((struct mbuf *)); |
void ip6_delaux __P((struct mbuf *)); |
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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)); |
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void ip6_forward __P((struct mbuf *, int)); |
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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 *)); |
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int route6_input __P((struct mbuf **, int *, int)); |
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void frag6_init __P((void)); |
int frag6_input __P((struct mbuf **, int *, int)); |
void frag6_slowtimo __P((void)); |
void frag6_drain __P((void)); |
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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 *)); |
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int dest6_input __P((struct mbuf **, int *, int)); |
int none_input __P((struct mbuf **, int *, int)); |
#endif /* _KERNEL */ |
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#endif /* !_NETINET6_IP6_VAR_H_ */ |