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1254 |
phoenix |
//==========================================================================
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//
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// include/netinet6_ipv6_var.h
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//
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//
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//
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//==========================================================================
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//####BSDCOPYRIGHTBEGIN####
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//
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// -------------------------------------------
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//
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// Portions of this software may have been derived from OpenBSD or other sources,
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// and are covered by the appropriate copyright disclaimers included herein.
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//
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// -------------------------------------------
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//
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//####BSDCOPYRIGHTEND####
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//==========================================================================
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//#####DESCRIPTIONBEGIN####
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//
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// Author(s): gthomas
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// Contributors: gthomas
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// Date: 2000-01-10
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// Purpose:
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// Description:
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//
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//
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//####DESCRIPTIONEND####
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//
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//==========================================================================
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/*
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%%% copyright-nrl-95
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This software is Copyright 1995-1998 by Randall Atkinson, Ronald Lee,
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Daniel McDonald, Bao Phan, and Chris Winters. All Rights Reserved. All
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rights under this copyright have been assigned to the US Naval Research
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Laboratory (NRL). The NRL Copyright Notice and License Agreement Version
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1.1 (January 17, 1995) applies to this software.
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You should have received a copy of the license with this software. If you
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didn't get a copy, you may request one from <license@ipv6.nrl.navy.mil>.
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*/
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#ifndef _NETINET6_IPV6_VAR_H
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#define _NETINET6_IPV6_VAR_H 1
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#include <netinet6/in6.h>
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/*
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* IPv6 multicast "options". Session state for multicast, including
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* weird per-session multicast things.
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*/
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struct ipv6_moptions
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{
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struct ifnet *i6mo_multicast_ifp; /* ifp for outgoing multicasts */
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u_char i6mo_multicast_ttl; /* TTL for outgoing multicasts.
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Does this matter in IPv6? */
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u_char i6mo_multicast_loop; /* 1 => hear sends if a member */
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u_short i6mo_num_memberships; /* no. memberships this socket */
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struct in6_multi *i6mo_membership[IN6_MAX_MEMBERSHIPS];
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};
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/*
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* IPv6 stats.
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*/
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#if defined(_BSDI_VERSION) && _BSDI_VERSION >= 199802
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#define _IPV6STAT_TYPE u_quad_t
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#else /* defined(_BSDI_VERSION) && _BSDI_VERSION >= 199802 */
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#define _IPV6STAT_TYPE u_long
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#endif /* defined(_BSDI_VERSION) && _BSDI_VERSION >= 199802 */
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struct ipv6stat {
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_IPV6STAT_TYPE ips_total; /* total packets received */
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_IPV6STAT_TYPE ips_tooshort; /* packet too short */
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_IPV6STAT_TYPE ips_toosmall; /* not enough data */
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_IPV6STAT_TYPE ips_fragments; /* fragments received */
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_IPV6STAT_TYPE ips_fragdropped; /* frags dropped (dups, out of space) */
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_IPV6STAT_TYPE ips_fragtimeout; /* fragments timed out */
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_IPV6STAT_TYPE ips_forward; /* packets forwarded */
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_IPV6STAT_TYPE ips_cantforward; /* packets rcvd for unreachable dest */
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_IPV6STAT_TYPE ips_redirectsent; /* packets forwarded on same net */
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_IPV6STAT_TYPE ips_noproto; /* unknown or unsupported protocol */
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_IPV6STAT_TYPE ips_delivered; /* datagrams delivered to upper level*/
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_IPV6STAT_TYPE ips_localout; /* total ip packets generated here */
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_IPV6STAT_TYPE ips_odropped; /* lost packets due to nobufs, etc. */
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_IPV6STAT_TYPE ips_reassembled; /* total packets reassembled ok */
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_IPV6STAT_TYPE ips_fragmented; /* datagrams sucessfully fragmented */
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_IPV6STAT_TYPE ips_ofragments; /* output fragments created */
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_IPV6STAT_TYPE ips_cantfrag; /* don't fragment flag was set, etc. */
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_IPV6STAT_TYPE ips_badoptions; /* error in option processing */
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_IPV6STAT_TYPE ips_noroute; /* packets discarded due to no route */
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_IPV6STAT_TYPE ips_badvers; /* IPv6 version != 6 */
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_IPV6STAT_TYPE ips_rawout; /* total raw ip packets generated */
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};
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#if defined(_KERNEL) || defined(KERNEL)
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/*
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* The IPv6 fragment queue entry structure.
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* Notes:
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* Nodes are stored in ttl order.
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* prefix comes from whichever packet gets here first.
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* data contains a chain of chains of mbufs (m_next down a chain, m_nextpkt
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* chaining chains together) where the chains are ordered by assembly
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* position. When two chains are contiguous for reassembly, they are
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* combined and the frag header disappears.
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* The structure is deliberately sized so MALLOC will round up on the order
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* of much less than the total size instead of doubling the size.
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*/
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struct ipv6_fragment
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{
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struct ipv6_fragment *next; /* Next fragment chain */
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struct mbuf *prefix; /* Headers before frag header(s) */
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struct mbuf *data; /* Frag headers + whatever data */
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u_char ttl; /* Fragment chain TTL. */
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u_char flags; /* Bit 0 indicates got end of chain */
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};
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/*
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* Structures and definitions for discovery mechanisms in IPv6.
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*/
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/*
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* Neighbor cache:
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*
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* Number of unanswered probes is in discq.
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* "Time of next event" will be in rt->rt_rmx.rmx_expire
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* (rmx_expire will actually be quite overloaded, actually.)
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* Status REACHABLE will be dq_unanswered < 0
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* Status PROBE will be dq_unanswered >= 0
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* Status INCOMPLETE will be link addr length of 0 if held,
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* or deleted if not held.
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*
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* If held, but INCOMPLETE fails set RTF_REJECT and make sure
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* IPv6 and HLP's know how to deal with RTF_REJECT being set.
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*/
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struct discq /* Similar to v4's llinfo_arp, discovery's "neighbor entry". */
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{
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struct discq *dq_next,*dq_prev; /* For {ins,rem}que(). */
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struct rtentry *dq_rt; /* Back pointer to routing entry for
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an address that may be dead. */
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struct mbuf *dq_queue; /* Queue of outgoing messages. */
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int dq_unanswered; /* Number of unanswered probes. */
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};
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#if !defined(_BSDI_VERSION) || (_BSDI_VERSION < 199802)
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/* Routing flag redefinitions */
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#define RTF_ISAROUTER RTF_PROTO2 /* Neighbor is a router. */
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#define RTF_DEFAULT RTF_PROTO1 /* Default route. */
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#endif /* !defined(_BSDI_VERSION) || (_BSDI_VERSION < 199802) */
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/*
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* These should be configurable parameters, see ipv6_discovery.c.
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* All units are in comments besides constants.
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*/
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#define MAX_INITIAL_RTR_ADVERT_INTERVAL 16 /* seconds */
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#define MAX_INITIAL_RTR_ADVERTISEMENTS 3 /* transmissions */
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#define MAX_RTR_RESPONSE_DELAY 2 /* seconds */
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#define MAX_RTR_SOLICITATION_DELAY 1 /* second */
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#define RTR_SOLICITATION_INTERVAL 3 /* seconds */
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#define MAX_RTR_SOLICITATIONS 3 /* transmissions */
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#define MAX_MULTICAST_SOLICIT 3 /* transmissions */
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#define MAX_UNICAST_SOLICIT 3 /* transmissions */
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#define MAX_ANYCAST_DELAY_TIME 1 /* seconds */
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#define MAX_NEIGHBOR_ADVERTISEMENTS 3 /* transmissions */
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#define MIN_NEIGHBOR_ADVERT_INTERVAL 16 /* seconds */
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#define REACHABLE_TIME 30 /* seconds */
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#define RETRANS_TIMER 3 /* seconds */
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#define DELAY_FIRST_PROBE_TIME 3 /* seconds */
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/* Need to somehow define random factors. */
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#define NEXTHOP_CLEAN_INTERVAL 600 /* seconds */
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#define REJECT_TIMER 20 /* seconds */
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/*
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* Child of a router or tunnel. Is a "meta-entry" for garbage collection.
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*/
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struct v6child
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{
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struct v6child *v6c_next,*v6c_prev; /* For {ins,rem}que() */
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struct v6router *v6c_parent; /* Parent router. I'm null if
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I'm the router, or a tunnel
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child. */
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struct rtentry *v6c_route; /* Next-hop cache entry. I won't
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be holding it, but I'm attached
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to it, like discq is to neighbor
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cache entries. */
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};
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/*
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* Default router list entry. Should be inserted
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* in priority order. Will also have entries for non-
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* default routers, because I may be a router myself.
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*/
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struct v6router
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{
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struct v6router *v6r_next,*v6r_prev; /* For {ins,rem}que() */
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struct rtentry *v6r_rt; /* Route for this. Could be neighbor,
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could be tunnel. */
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struct v6child v6r_children; /* Children of this router. */
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/* Metric information? */
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uint32_t v6r_expire; /* Expiration time. */
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};
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#define V6R_SIN6(v6r) ((struct sockaddr_in6 *)rt_key((v6r)->v6r_rt))
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/*
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* Flags for "flags" argument in ipv6_output().
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*/
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#define IPV6_FORWARDING 0x1 /* Most of IPv6 header exists? */
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#define IPV6_RAWOUTPUT 0x2 /* Raw IPv6 packet! */
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#define IPV6_ROUTETOIF SO_DONTROUTE /* Include sys/socket.h... */
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void ipv6_init __P((void));
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void ipv6_drain __P((void));
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void ipv6_slowtimo __P((void));
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int ipv6_sysctl __P((int *, uint, void *, size_t *, void *, size_t));
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struct route6;
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#if __FreeBSD__
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int ipv6_ctloutput __P((struct socket *, struct sockopt *));
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int ripv6_ctloutput __P((struct socket *, struct sockopt *));
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#else /* __FreeBSD__ */
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int ipv6_ctloutput __P((int, struct socket *,int,int, struct mbuf **));
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int ripv6_ctloutput __P((int, struct socket *, int, int, struct mbuf **));
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#endif /* __FreeBSD__ */
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void ripv6_init __P((void));
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#if __OpenBSD__
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void ripv6_input __P((struct mbuf *, ...));
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int ripv6_output __P((struct mbuf *, ...));
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#else /* __OpenBSD__ */
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void ripv6_input __P((struct mbuf *, int));
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int ripv6_output __P((struct mbuf *, struct socket *, struct in6_addr *, struct mbuf *));
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#endif /* __OpenBSD__ */
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#if __NetBSD__ || __FreeBSD__
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int ripv6_usrreq_send(struct socket *, int, struct mbuf *, struct sockaddr *,
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struct mbuf *, struct proc *);
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#else /* __NetBSD__ || __FreeBSD__ */
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| 249 |
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int ripv6_usrreq_send(struct socket *, int, struct mbuf *, struct sockaddr *,
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struct mbuf *);
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#endif /* __NetBSD__ || __FreeBSD__ */
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| 253 |
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#if __FreeBSD__
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int ripv6_usrreq_abort(struct socket *);
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int ripv6_usrreq_attach(struct socket *, int , struct proc *);
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int ripv6_usrreq_bind(struct socket *, struct sockaddr *, struct proc *);
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int ripv6_usrreq_connect(struct socket *, struct sockaddr *, struct proc *);
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| 258 |
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int ripv6_usrreq_control(struct socket *, u_long, caddr_t, struct ifnet *,
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struct proc *);
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int ripv6_usrreq_detach(struct socket *);
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int ripv6_usrreq_peeraddr(struct socket *, struct sockaddr **);
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int ripv6_usrreq_sense(struct socket *, struct stat *);
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int ripv6_usrreq_shutdown(struct socket *);
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| 264 |
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int ripv6_usrreq_sockaddr(struct socket *, struct sockaddr **);
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| 265 |
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#else /* __FreeBSD__ */
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#if __NetBSD__
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| 267 |
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int ripv6_usrreq __P((struct socket *, int, struct mbuf *, struct mbuf *,
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| 268 |
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struct mbuf *, struct proc *));
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| 269 |
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#else /* __NetBSD__ */
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| 270 |
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int ripv6_usrreq __P((struct socket *, int, struct mbuf *, struct mbuf *,
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| 271 |
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struct mbuf *));
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| 272 |
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#endif /* __NetBSD__ */
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| 273 |
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#endif /* __FreeBSD__ */
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| 274 |
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| 275 |
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#if __OpenBSD__
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| 276 |
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void ipv6_input __P((struct mbuf *, ...));
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| 277 |
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int ipv6_output __P((struct mbuf *, ...));
|
| 278 |
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#else /* __OpenBSD__ */
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| 279 |
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void ipv6_input __P((struct mbuf *, int));
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| 280 |
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int ipv6_output __P((struct mbuf *, struct route6 *, int, struct ipv6_moptions *, struct ifnet *, struct socket *));
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| 281 |
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#endif /* __OpenBSD__ */
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| 282 |
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void ipv6_reasm __P((struct mbuf *, int));
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| 283 |
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void ipv6_hop __P((struct mbuf *, int));
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| 284 |
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| 285 |
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#if __FreeBSD__
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| 286 |
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int in6_control __P((struct socket *,int, caddr_t, struct ifnet *,int, struct proc *));
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| 287 |
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#else /* __FreeBSD__ */
|
| 288 |
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#if __NetBSD__
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| 289 |
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int in6_control __P((struct socket *,u_long, caddr_t, struct ifnet *,int, struct proc *));
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#else /* __NetBSD__ */
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int in6_control __P((struct socket *,int, caddr_t, struct ifnet *,int));
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| 292 |
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#endif /* __NetBSD__ */
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| 293 |
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#endif /* __FreeBSD__ */
|
| 294 |
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void ipv6_stripoptions __P((struct mbuf *, int));
|
| 295 |
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struct in6_multi *in6_addmulti __P((struct in6_addr *,struct ifnet *));
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| 296 |
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void in6_delmulti __P((struct in6_multi *));
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| 297 |
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| 298 |
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#if __FreeBSD__
|
| 299 |
|
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/* ripv6_usrreq and ipv6_icmp_usrreq functions */
|
| 300 |
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extern struct pr_usrreqs ripv6_usrreqs;
|
| 301 |
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extern struct pr_usrreqs ipv6_icmp_usrreqs;
|
| 302 |
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| 303 |
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extern int ripv6_usr_attach(struct socket *, int , struct proc *);
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| 304 |
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extern int ripv6_usr_disconnect(struct socket *);
|
| 305 |
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extern int ripv6_usr_abort(struct socket *);
|
| 306 |
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extern int ripv6_usr_detach(struct socket *);
|
| 307 |
|
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extern int ripv6_usr_bind(struct socket *, struct sockaddr *, struct proc *);
|
| 308 |
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extern int ripv6_usr_connect(struct socket *, struct sockaddr *, struct proc *);
|
| 309 |
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extern int ripv6_usr_shutdown(struct socket *);
|
| 310 |
|
|
extern int ripv6_usr_send(struct socket *, int, struct mbuf *,
|
| 311 |
|
|
struct sockaddr *, struct mbuf *, struct proc *);
|
| 312 |
|
|
extern int ripv6_usr_control(struct socket *, int, caddr_t,
|
| 313 |
|
|
struct ifnet *, struct proc *);
|
| 314 |
|
|
extern int ripv6_usr_sense(struct socket *, struct stat *);
|
| 315 |
|
|
extern int ripv6_usr_sockaddr(struct socket *, struct sockaddr **);
|
| 316 |
|
|
extern int ripv6_usr_peeraddr(struct socket *, struct sockaddr **);
|
| 317 |
|
|
#endif /* __FreeBSD__ */
|
| 318 |
|
|
|
| 319 |
|
|
extern int ipv6_icmp_send(struct socket *, int, struct mbuf *,
|
| 320 |
|
|
struct sockaddr *, struct mbuf *, struct proc *);
|
| 321 |
|
|
|
| 322 |
|
|
#if __OpenBSD__
|
| 323 |
|
|
#ifdef NRL_IPSEC
|
| 324 |
|
|
void *ipv6_trans_ctlinput __P((int, struct sockaddr *, void *, struct mbuf *));
|
| 325 |
|
|
#else /* NRL_IPSEC */
|
| 326 |
|
|
void *ipv6_trans_ctlinput __P((int, struct sockaddr *, void *));
|
| 327 |
|
|
#endif /* NRL_IPSEC */
|
| 328 |
|
|
#else /* __OpenBSD__ */
|
| 329 |
|
|
struct ip;
|
| 330 |
|
|
#ifdef NRL_IPSEC
|
| 331 |
|
|
void ipv6_trans_ctlinput __P((int, struct sockaddr *, struct ip *, struct mbuf *));
|
| 332 |
|
|
#else /* NRL_IPSEC */
|
| 333 |
|
|
void ipv6_trans_ctlinput __P((int, struct sockaddr *, struct ip *));
|
| 334 |
|
|
#endif /* NRL_IPSEC */
|
| 335 |
|
|
#endif /* __OpenBSD__ */
|
| 336 |
|
|
|
| 337 |
|
|
/* These might belong in in_pcb.h */
|
| 338 |
|
|
struct inpcb;
|
| 339 |
|
|
#if __FreeBSD__
|
| 340 |
|
|
/*
|
| 341 |
|
|
* FreeBSD, having done away with the *_usrreq() functions no longer needs to
|
| 342 |
|
|
* pass mbufs to these functions. Thus they pass in sockaddrs instead.
|
| 343 |
|
|
*/
|
| 344 |
|
|
int in6_pcbbind(struct inpcb *, struct sockaddr *);
|
| 345 |
|
|
int in6_pcbconnect(struct inpcb *, struct sockaddr *);
|
| 346 |
|
|
int in6_setsockaddr(struct inpcb *, struct sockaddr **);
|
| 347 |
|
|
int in6_setpeeraddr(struct inpcb *, struct sockaddr **);
|
| 348 |
|
|
#else /* __FreeBSD__ */
|
| 349 |
|
|
int in6_pcbbind(struct inpcb *, struct mbuf *);
|
| 350 |
|
|
int in6_pcbconnect(struct inpcb *, struct mbuf *);
|
| 351 |
|
|
int in6_setsockaddr(struct inpcb *, struct mbuf *);
|
| 352 |
|
|
int in6_setpeeraddr(struct inpcb *, struct mbuf *);
|
| 353 |
|
|
#endif /* __FreeBSD__ */
|
| 354 |
|
|
void ipv6_onlink_query(struct sockaddr_in6 *);
|
| 355 |
|
|
int ipv6_verify_onlink(struct sockaddr_in6 *);
|
| 356 |
|
|
|
| 357 |
|
|
#if __FreeBSD__
|
| 358 |
|
|
struct inpcbhead; /* XXX? Forward declaration needed. */
|
| 359 |
|
|
#define __IN6_PCBNOTIFY_FIRSTARG struct inpcbhead *
|
| 360 |
|
|
#endif /* __FreeBSD__ */
|
| 361 |
|
|
#if __NetBSD__ || __OpenBSD__
|
| 362 |
|
|
struct inpcbtable;
|
| 363 |
|
|
#define __IN6_PCBNOTIFY_FIRSTARG struct inpcbtable *
|
| 364 |
|
|
#endif /* __NetBSD__ || __OpenBSD__ */
|
| 365 |
|
|
#if __bsdi__
|
| 366 |
|
|
struct inpcb;
|
| 367 |
|
|
#define __IN6_PCBNOTIFY_FIRSTARG struct inpcb *
|
| 368 |
|
|
#endif /* __bsdi__ */
|
| 369 |
|
|
|
| 370 |
|
|
#if (!__OpenBSD__ && defined(IPSEC)) || (__OpenBSD__ && defined(NRL_IPSEC))
|
| 371 |
|
|
int in6_pcbnotify __P((__IN6_PCBNOTIFY_FIRSTARG, struct sockaddr *, uint,
|
| 372 |
|
|
struct in6_addr *, uint, int, void (*)(struct inpcb *,
|
| 373 |
|
|
int), struct mbuf *, int));
|
| 374 |
|
|
#else /* (!__OpenBSD__ && defined(IPSEC)) || (__OpenBSD__ && defined(NRL_IPSEC)) */
|
| 375 |
|
|
int in6_pcbnotify __P((__IN6_PCBNOTIFY_FIRSTARG, struct sockaddr *, uint,
|
| 376 |
|
|
struct in6_addr *, uint, int, void (*)(struct inpcb *,
|
| 377 |
|
|
int)));
|
| 378 |
|
|
#endif /* (!__OpenBSD__ && defined(IPSEC)) || (__OpenBSD__ && defined(NRL_IPSEC)) */
|
| 379 |
|
|
|
| 380 |
|
|
#undef __IN6_PCBNOTIFY_FIRSTARG
|
| 381 |
|
|
|
| 382 |
|
|
void ipv6_freemoptions __P((struct ipv6_moptions *));
|
| 383 |
|
|
|
| 384 |
|
|
int ipv6_controltoheader(struct mbuf **m, struct mbuf *control, struct ifnet **forceifp, int *);
|
| 385 |
|
|
struct mbuf *ipv6_headertocontrol(struct mbuf *m, int extra, int inp_flags);
|
| 386 |
|
|
#endif /* defined(_KERNEL) || defined(KERNEL) */
|
| 387 |
|
|
|
| 388 |
|
|
#endif /* _NETINET6_IPV6_VAR_H */
|
