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/* $NetBSD: in6_var.h,v 1.104 2020/06/16 17:12:18 maxv Exp $ */
/* $KAME: in6_var.h,v 1.81 2002/06/08 11:16:51 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) 1985, 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. 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.
*
* @(#)in_var.h 8.1 (Berkeley) 6/10/93
*/
#ifndef _NETINET6_IN6_VAR_H_
#define _NETINET6_IN6_VAR_H_
#include <sys/callout.h>
#include <sys/ioccom.h>
/*
* Interface address, Internet version. One of these structures
* is allocated for each interface with an Internet address.
* The ifaddr structure contains the protocol-independent part
* of the structure and is assumed to be first.
*/
/*
* pltime/vltime are just for future reference (required to implements 2
* hour rule for hosts). they should never be modified by nd6_timeout or
* anywhere else.
* userland -> kernel: accept pltime/vltime
* kernel -> userland: throw up everything
* in kernel: modify preferred/expire only
*/
struct in6_addrlifetime {
time_t ia6t_expire; /* valid lifetime expiration time */
time_t ia6t_preferred; /* preferred lifetime expiration time */
u_int32_t ia6t_vltime; /* valid lifetime */
u_int32_t ia6t_pltime; /* prefix lifetime */
};
struct lltable;
struct nd_kifinfo;
struct in6_ifextra {
struct in6_ifstat *in6_ifstat;
struct icmp6_ifstat *icmp6_ifstat;
struct nd_kifinfo *nd_ifinfo;
struct scope6_id *scope6_id;
struct lltable *lltable;
};
LIST_HEAD(in6_multihead, in6_multi);
struct in6_ifaddr {
struct ifaddr ia_ifa; /* protocol-independent info */
#define ia_ifp ia_ifa.ifa_ifp
#define ia_flags ia_ifa.ifa_flags
struct sockaddr_in6 ia_addr; /* interface address */
struct sockaddr_in6 ia_net; /* network number of interface */
struct sockaddr_in6 ia_dstaddr; /* space for destination addr */
struct sockaddr_in6 ia_prefixmask; /* prefix mask */
u_int32_t ia_plen; /* prefix length */
/* DEPRECATED. Keep it to avoid breaking kvm(3) users */
struct in6_ifaddr *ia_next; /* next in6 list of IP6 addresses */
/* DEPRECATED. Keep it to avoid breaking kvm(3) users */
struct in6_multihead _ia6_multiaddrs;
/* list of multicast addresses */
int ia6_flags;
struct in6_addrlifetime ia6_lifetime;
time_t ia6_createtime; /* the creation time of this address, which is
* currently used for temporary addresses only.
*/
time_t ia6_updatetime;
/* multicast addresses joined from the kernel */
LIST_HEAD(, in6_multi_mship) ia6_memberships;
#ifdef _KERNEL
struct pslist_entry ia6_pslist_entry;
#endif
};
#ifdef _KERNEL
static __inline void
ia6_acquire(struct in6_ifaddr *ia, struct psref *psref)
{
KASSERT(ia != NULL);
ifa_acquire(&ia->ia_ifa, psref);
}
static __inline void
ia6_release(struct in6_ifaddr *ia, struct psref *psref)
{
if (ia == NULL)
return;
ifa_release(&ia->ia_ifa, psref);
}
#endif
/* control structure to manage address selection policy */
struct in6_addrpolicy {
struct sockaddr_in6 addr; /* prefix address */
struct sockaddr_in6 addrmask; /* prefix mask */
int preced; /* precedence */
int label; /* matching label */
u_quad_t use; /* statistics */
};
/*
* IPv6 interface statistics, as defined in RFC2465 Ipv6IfStatsEntry (p12).
*/
struct in6_ifstat {
u_quad_t ifs6_in_receive; /* # of total input datagram */
u_quad_t ifs6_in_hdrerr; /* # of datagrams with invalid hdr */
u_quad_t ifs6_in_toobig; /* # of datagrams exceeded MTU */
u_quad_t ifs6_in_noroute; /* # of datagrams with no route */
u_quad_t ifs6_in_addrerr; /* # of datagrams with invalid dst */
u_quad_t ifs6_in_protounknown; /* # of datagrams with unknown proto */
/* NOTE: increment on final dst if */
u_quad_t ifs6_in_truncated; /* # of truncated datagrams */
u_quad_t ifs6_in_discard; /* # of discarded datagrams */
/* NOTE: fragment timeout is not here */
u_quad_t ifs6_in_deliver; /* # of datagrams delivered to ULP */
/* NOTE: increment on final dst if */
u_quad_t ifs6_out_forward; /* # of datagrams forwarded */
/* NOTE: increment on outgoing if */
u_quad_t ifs6_out_request; /* # of outgoing datagrams from ULP */
/* NOTE: does not include forwrads */
u_quad_t ifs6_out_discard; /* # of discarded datagrams */
u_quad_t ifs6_out_fragok; /* # of datagrams fragmented */
u_quad_t ifs6_out_fragfail; /* # of datagrams failed on fragment */
u_quad_t ifs6_out_fragcreat; /* # of fragment datagrams */
/* NOTE: this is # after fragment */
u_quad_t ifs6_reass_reqd; /* # of incoming fragmented packets */
/* NOTE: increment on final dst if */
u_quad_t ifs6_reass_ok; /* # of reassembled packets */
/* NOTE: this is # after reass */
/* NOTE: increment on final dst if */
u_quad_t ifs6_reass_fail; /* # of reass failures */
/* NOTE: may not be packet count */
/* NOTE: increment on final dst if */
u_quad_t ifs6_in_mcast; /* # of inbound multicast datagrams */
u_quad_t ifs6_out_mcast; /* # of outbound multicast datagrams */
};
/*
* ICMPv6 interface statistics, as defined in RFC2466 Ipv6IfIcmpEntry.
* XXX: I'm not sure if this file is the right place for this structure...
*/
struct icmp6_ifstat {
/*
* Input statistics
*/
/* ipv6IfIcmpInMsgs, total # of input messages */
u_quad_t ifs6_in_msg;
/* ipv6IfIcmpInErrors, # of input error messages */
u_quad_t ifs6_in_error;
/* ipv6IfIcmpInDestUnreachs, # of input dest unreach errors */
u_quad_t ifs6_in_dstunreach;
/* ipv6IfIcmpInAdminProhibs, # of input administratively prohibited errs */
u_quad_t ifs6_in_adminprohib;
/* ipv6IfIcmpInTimeExcds, # of input time exceeded errors */
u_quad_t ifs6_in_timeexceed;
/* ipv6IfIcmpInParmProblems, # of input parameter problem errors */
u_quad_t ifs6_in_paramprob;
/* ipv6IfIcmpInPktTooBigs, # of input packet too big errors */
u_quad_t ifs6_in_pkttoobig;
/* ipv6IfIcmpInEchos, # of input echo requests */
u_quad_t ifs6_in_echo;
/* ipv6IfIcmpInEchoReplies, # of input echo replies */
u_quad_t ifs6_in_echoreply;
/* ipv6IfIcmpInRouterSolicits, # of input router solicitations */
u_quad_t ifs6_in_routersolicit;
/* ipv6IfIcmpInRouterAdvertisements, # of input router advertisements */
u_quad_t ifs6_in_routeradvert;
/* ipv6IfIcmpInNeighborSolicits, # of input neighbor solicitations */
u_quad_t ifs6_in_neighborsolicit;
/* ipv6IfIcmpInNeighborAdvertisements, # of input neighbor advertisements */
u_quad_t ifs6_in_neighboradvert;
/* ipv6IfIcmpInRedirects, # of input redirects */
u_quad_t ifs6_in_redirect;
/* ipv6IfIcmpInGroupMembQueries, # of input MLD queries */
u_quad_t ifs6_in_mldquery;
/* ipv6IfIcmpInGroupMembResponses, # of input MLD reports */
u_quad_t ifs6_in_mldreport;
/* ipv6IfIcmpInGroupMembReductions, # of input MLD done */
u_quad_t ifs6_in_mlddone;
/*
* Output statistics. We should solve unresolved routing problem...
*/
/* ipv6IfIcmpOutMsgs, total # of output messages */
u_quad_t ifs6_out_msg;
/* ipv6IfIcmpOutErrors, # of output error messages */
u_quad_t ifs6_out_error;
/* ipv6IfIcmpOutDestUnreachs, # of output dest unreach errors */
u_quad_t ifs6_out_dstunreach;
/* ipv6IfIcmpOutAdminProhibs, # of output administratively prohibited errs */
u_quad_t ifs6_out_adminprohib;
/* ipv6IfIcmpOutTimeExcds, # of output time exceeded errors */
u_quad_t ifs6_out_timeexceed;
/* ipv6IfIcmpOutParmProblems, # of output parameter problem errors */
u_quad_t ifs6_out_paramprob;
/* ipv6IfIcmpOutPktTooBigs, # of output packet too big errors */
u_quad_t ifs6_out_pkttoobig;
/* ipv6IfIcmpOutEchos, # of output echo requests */
u_quad_t ifs6_out_echo;
/* ipv6IfIcmpOutEchoReplies, # of output echo replies */
u_quad_t ifs6_out_echoreply;
/* ipv6IfIcmpOutRouterSolicits, # of output router solicitations */
u_quad_t ifs6_out_routersolicit;
/* ipv6IfIcmpOutRouterAdvertisements, # of output router advertisements */
u_quad_t ifs6_out_routeradvert;
/* ipv6IfIcmpOutNeighborSolicits, # of output neighbor solicitations */
u_quad_t ifs6_out_neighborsolicit;
/* ipv6IfIcmpOutNeighborAdvertisements, # of output neighbor advertisements */
u_quad_t ifs6_out_neighboradvert;
/* ipv6IfIcmpOutRedirects, # of output redirects */
u_quad_t ifs6_out_redirect;
/* ipv6IfIcmpOutGroupMembQueries, # of output MLD queries */
u_quad_t ifs6_out_mldquery;
/* ipv6IfIcmpOutGroupMembResponses, # of output MLD reports */
u_quad_t ifs6_out_mldreport;
/* ipv6IfIcmpOutGroupMembReductions, # of output MLD done */
u_quad_t ifs6_out_mlddone;
};
/*
* If you make changes that change the size of in6_ifreq,
* make sure you fix compat/netinet6/in6_var.h
*/
struct in6_ifreq {
char ifr_name[IFNAMSIZ];
union {
struct sockaddr_in6 ifru_addr;
struct sockaddr_in6 ifru_dstaddr;
short ifru_flags;
int ifru_flags6;
int ifru_metric;
void * ifru_data;
struct in6_addrlifetime ifru_lifetime;
struct in6_ifstat ifru_stat;
struct icmp6_ifstat ifru_icmp6stat;
} ifr_ifru;
};
struct in6_aliasreq {
char ifra_name[IFNAMSIZ];
struct sockaddr_in6 ifra_addr;
struct sockaddr_in6 ifra_dstaddr;
struct sockaddr_in6 ifra_prefixmask;
int ifra_flags;
struct in6_addrlifetime ifra_lifetime;
};
/*
* Given a pointer to an in6_ifaddr (ifaddr),
* return a pointer to the addr as a sockaddr_in6
*/
#define IA6_IN6(ia) (&((ia)->ia_addr.sin6_addr))
#define IA6_DSTIN6(ia) (&((ia)->ia_dstaddr.sin6_addr))
#define IA6_MASKIN6(ia) (&((ia)->ia_prefixmask.sin6_addr))
#define IA6_SIN6(ia) (&((ia)->ia_addr))
#define IA6_DSTSIN6(ia) (&((ia)->ia_dstaddr))
#define IFA_IN6(x) (&((struct sockaddr_in6 *)((x)->ifa_addr))->sin6_addr)
#define IFA_DSTIN6(x) (&((struct sockaddr_in6 *)((x)->ifa_dstaddr))->sin6_addr)
#ifdef _KERNEL
#define IN6_ARE_MASKED_ADDR_EQUAL(d, a, m) ( \
(((d)->s6_addr32[0] ^ (a)->s6_addr32[0]) & (m)->s6_addr32[0]) == 0 && \
(((d)->s6_addr32[1] ^ (a)->s6_addr32[1]) & (m)->s6_addr32[1]) == 0 && \
(((d)->s6_addr32[2] ^ (a)->s6_addr32[2]) & (m)->s6_addr32[2]) == 0 && \
(((d)->s6_addr32[3] ^ (a)->s6_addr32[3]) & (m)->s6_addr32[3]) == 0 )
#endif
#define SIOCSIFADDR_IN6 _IOW('i', 12, struct in6_ifreq)
#define SIOCGIFADDR_IN6 _IOWR('i', 33, struct in6_ifreq)
#ifdef _KERNEL
/*
* SIOCSxxx ioctls should be unused (see comments in in6.c), but
* we do not shift numbers for binary compatibility.
*/
#define SIOCSIFDSTADDR_IN6 _IOW('i', 14, struct in6_ifreq)
#define SIOCSIFNETMASK_IN6 _IOW('i', 22, struct in6_ifreq)
#endif
#define SIOCGIFDSTADDR_IN6 _IOWR('i', 34, struct in6_ifreq)
#define SIOCGIFNETMASK_IN6 _IOWR('i', 37, struct in6_ifreq)
#define SIOCDIFADDR_IN6 _IOW('i', 25, struct in6_ifreq)
/* 26 was OSIOCAIFADDR_IN6 */
/* 70 was OSIOCSIFPHYADDR_IN6 */
#define SIOCGIFPSRCADDR_IN6 _IOWR('i', 71, struct in6_ifreq)
#define SIOCGIFPDSTADDR_IN6 _IOWR('i', 72, struct in6_ifreq)
#define SIOCGIFAFLAG_IN6 _IOWR('i', 73, struct in6_ifreq)
/*
* 74 was SIOCGDRLST_IN6
* 75 was SIOCGPRLST_IN6
* 76 was OSIOCGIFINFO_IN6
* 77 was SIOCSNDFLUSH_IN6
*/
#define SIOCGNBRINFO_IN6 _IOWR('i', 78, struct in6_nbrinfo)
/*
* 79 was SIOCSPFXFLUSH_IN6
* 80 was SIOCSRTRFLUSH_IN6
* 81 was SIOCGIFALIFETIME_IN6
*/
#if 0
/* withdrawn - do not reuse number 82 */
#define SIOCSIFALIFETIME_IN6 _IOWR('i', 82, struct in6_ifreq)
#endif
#define SIOCGIFSTAT_IN6 _IOWR('i', 83, struct in6_ifreq)
#define SIOCGIFSTAT_ICMP6 _IOWR('i', 84, struct in6_ifreq)
/*
* 85 was SIOCSDEFIFACE_IN6
* 86 was SIOCGDEFIFACE_IN6
* 87 was OSIOCSIFINFO_FLAGS
* 100 was SIOCSIFPREFIX_IN6
* 101 was SIOCGIFPREFIX_IN6
* 102 was SIOCDIFPREFIX_IN6
* 103 was SIOCAIFPREFIX_IN6
* 104 was SIOCCIFPREFIX_IN6
* 105 was SIOCSGIFPREFIX_IN6
*/
#define SIOCGIFALIFETIME_IN6 _IOWR('i', 106, struct in6_ifreq)
#define SIOCAIFADDR_IN6 _IOW('i', 107, struct in6_aliasreq)
/* 108 was OSIOCGIFINFO_IN6_90
* 109 was OSIOCSIFINFO_IN6_90 */
#define SIOCSIFPHYADDR_IN6 _IOW('i', 110, struct in6_aliasreq)
/* 110 - 112 are defined in net/if_pppoe.h */
#define SIOCGIFINFO_IN6 _IOWR('i', 113, struct in6_ndireq)
#define SIOCSIFINFO_IN6 _IOWR('i', 114, struct in6_ndireq)
#define SIOCSIFINFO_FLAGS _IOWR('i', 115, struct in6_ndireq)
/* XXX: Someone decided to switch to 'u' here for unknown reasons! */
#define SIOCGETSGCNT_IN6 _IOWR('u', 106, \
struct sioc_sg_req6) /* get s,g pkt cnt */
#define SIOCGETMIFCNT_IN6 _IOWR('u', 107, \
struct sioc_mif_req6) /* get pkt cnt per if */
#define SIOCAADDRCTL_POLICY _IOW('u', 108, struct in6_addrpolicy)
#define SIOCDADDRCTL_POLICY _IOW('u', 109, struct in6_addrpolicy)
#define IN6_IFF_ANYCAST 0x01 /* anycast address */
#define IN6_IFF_TENTATIVE 0x02 /* tentative address */
#define IN6_IFF_DUPLICATED 0x04 /* DAD detected duplicate */
#define IN6_IFF_DETACHED 0x08 /* may be detached from the link */
#define IN6_IFF_DEPRECATED 0x10 /* deprecated address */
#define IN6_IFF_NODAD 0x20 /* don't perform DAD on this address
* (used only at first SIOC* call)
*/
#define IN6_IFF_AUTOCONF 0x40 /* autoconfigurable address. */
#define IN6_IFF_TEMPORARY 0x80 /* temporary (anonymous) address. */
#define IN6_IFFBITS \
"\020\1ANYCAST\2TENTATIVE\3DUPLICATED\4DETACHED\5DEPRECATED\6NODAD" \
"\7AUTOCONF\10TEMPORARY"
/* do not input/output */
#define IN6_IFF_NOTREADY (IN6_IFF_TENTATIVE|IN6_IFF_DUPLICATED)
#ifdef _KERNEL
#define IN6_ARE_SCOPE_CMP(a,b) ((a)-(b))
#define IN6_ARE_SCOPE_EQUAL(a,b) ((a)==(b))
#endif
#ifdef _KERNEL
#include <sys/mutex.h>
#include <sys/pserialize.h>
#include <net/pktqueue.h>
extern pktqueue_t *ip6_pktq;
MALLOC_DECLARE(M_IP6OPT);
extern struct pslist_head in6_ifaddr_list;
extern kmutex_t in6_ifaddr_lock;
#define IN6_ADDRLIST_ENTRY_INIT(__ia) \
PSLIST_ENTRY_INIT((__ia), ia6_pslist_entry)
#define IN6_ADDRLIST_ENTRY_DESTROY(__ia) \
PSLIST_ENTRY_DESTROY((__ia), ia6_pslist_entry)
#define IN6_ADDRLIST_READER_EMPTY() \
(PSLIST_READER_FIRST(&in6_ifaddr_list, struct in6_ifaddr, \
ia6_pslist_entry) == NULL)
#define IN6_ADDRLIST_READER_FIRST() \
PSLIST_READER_FIRST(&in6_ifaddr_list, struct in6_ifaddr, \
ia6_pslist_entry)
#define IN6_ADDRLIST_READER_NEXT(__ia) \
PSLIST_READER_NEXT((__ia), struct in6_ifaddr, ia6_pslist_entry)
#define IN6_ADDRLIST_READER_FOREACH(__ia) \
PSLIST_READER_FOREACH((__ia), &in6_ifaddr_list, \
struct in6_ifaddr, ia6_pslist_entry)
#define IN6_ADDRLIST_WRITER_INSERT_HEAD(__ia) \
PSLIST_WRITER_INSERT_HEAD(&in6_ifaddr_list, (__ia), ia6_pslist_entry)
#define IN6_ADDRLIST_WRITER_REMOVE(__ia) \
PSLIST_WRITER_REMOVE((__ia), ia6_pslist_entry)
#define IN6_ADDRLIST_WRITER_FOREACH(__ia) \
PSLIST_WRITER_FOREACH((__ia), &in6_ifaddr_list, struct in6_ifaddr, \
ia6_pslist_entry)
#define IN6_ADDRLIST_WRITER_FIRST() \
PSLIST_WRITER_FIRST(&in6_ifaddr_list, struct in6_ifaddr, \
ia6_pslist_entry)
#define IN6_ADDRLIST_WRITER_NEXT(__ia) \
PSLIST_WRITER_NEXT((__ia), struct in6_ifaddr, ia6_pslist_entry)
#define IN6_ADDRLIST_WRITER_INSERT_AFTER(__ia, __new) \
PSLIST_WRITER_INSERT_AFTER((__ia), (__new), ia6_pslist_entry)
#define IN6_ADDRLIST_WRITER_EMPTY() \
(PSLIST_WRITER_FIRST(&in6_ifaddr_list, struct in6_ifaddr, \
ia6_pslist_entry) == NULL)
#define IN6_ADDRLIST_WRITER_INSERT_TAIL(__new) \
do { \
if (IN6_ADDRLIST_WRITER_EMPTY()) { \
IN6_ADDRLIST_WRITER_INSERT_HEAD((__new)); \
} else { \
struct in6_ifaddr *__ia; \
IN6_ADDRLIST_WRITER_FOREACH(__ia) { \
if (IN6_ADDRLIST_WRITER_NEXT(__ia) == NULL) { \
IN6_ADDRLIST_WRITER_INSERT_AFTER(__ia,\
(__new)); \
break; \
} \
} \
} \
} while (0)
#define in6_ifstat_inc(ifp, tag) \
do { \
if (ifp) \
((struct in6_ifextra *)((ifp)->if_afdata[AF_INET6]))->in6_ifstat->tag++; \
} while (/*CONSTCOND*/ 0)
extern const struct in6_addr zeroin6_addr;
extern const u_char inet6ctlerrmap[];
extern bool in6_present;
/*
* Macro for finding the internet address structure (in6_ifaddr) corresponding
* to a given interface (ifnet structure).
*/
static __inline struct in6_ifaddr *
in6_get_ia_from_ifp(struct ifnet *ifp)
{
struct ifaddr *ifa;
IFADDR_READER_FOREACH(ifa, ifp) {
if (ifa->ifa_addr->sa_family == AF_INET6)
break;
}
return (struct in6_ifaddr *)ifa;
}
static __inline struct in6_ifaddr *
in6_get_ia_from_ifp_psref(struct ifnet *ifp, struct psref *psref)
{
struct in6_ifaddr *ia;
int s;
s = pserialize_read_enter();
ia = in6_get_ia_from_ifp(ifp);
if (ia != NULL)
ia6_acquire(ia, psref);
pserialize_read_exit(s);
return ia;
}
#endif /* _KERNEL */
/*
* Multi-cast membership entry. One for each group/ifp that a PCB
* belongs to.
*/
struct in6_multi_mship {
struct in6_multi *i6mm_maddr; /* Multicast address pointer */
LIST_ENTRY(in6_multi_mship) i6mm_chain; /* multicast options chain */
};
struct in6_multi {
LIST_ENTRY(in6_multi) in6m_entry; /* list glue */
struct in6_addr in6m_addr; /* IP6 multicast address */
struct ifnet *in6m_ifp; /* back pointer to ifnet */
/* DEPRECATED. Keep it to avoid breaking kvm(3) users */
struct in6_ifaddr *_in6m_ia; /* back pointer to in6_ifaddr */
u_int in6m_refcount; /* # membership claims by sockets */
u_int in6m_state; /* state of the membership */
int in6m_timer; /* delay to send the 1st report */
struct timeval in6m_timer_expire; /* when the timer expires */
callout_t in6m_timer_ch;
};
#define IN6M_TIMER_UNDEF -1
#ifdef _KERNEL
/* flags to in6_update_ifa */
#define IN6_IFAUPDATE_DADDELAY 0x1 /* first time to configure an address */
#if 0
/*
* Macros for looking up the in6_multi_mship record for a given IP6 multicast
* address on a given interface. If no matching record is found, "imm"
* returns NULL.
*/
static __inline struct in6_multi_mship *
in6_lookup_mship(struct in6_addr *addr, struct ifnet *ifp,
struct ip6_moptions *imop)
{
struct in6_multi_mship *imm;
LIST_FOREACH(imm, &imop->im6o_memberships, i6mm_chain) {
if (imm->i6mm_maddr->in6m_ifp != ifp)
continue;
if (IN6_ARE_ADDR_EQUAL(&imm->i6mm_maddr->in6m_addr,
addr))
break;
}
return imm;
}
#define IN6_LOOKUP_MSHIP(__addr, __ifp, __imop, __imm) \
/* struct in6_addr __addr; */ \
/* struct ifnet *__ifp; */ \
/* struct ip6_moptions *__imop */ \
/* struct in6_multi_mship *__imm; */ \
do { \
(__imm) = in6_lookup_mship(&(__addr), (__ifp), (__imop)); \
} while (/*CONSTCOND*/ 0)
#endif
void in6_init(void);
void in6_multi_lock(int);
void in6_multi_unlock(void);
bool in6_multi_locked(int);
struct in6_multi *
in6_lookup_multi(const struct in6_addr *, const struct ifnet *);
bool in6_multi_group(const struct in6_addr *, const struct ifnet *);
void in6_purge_multi(struct ifnet *);
struct in6_multi *in6_addmulti(struct in6_addr *, struct ifnet *,
int *, int);
void in6_delmulti(struct in6_multi *);
void in6_delmulti_locked(struct in6_multi *);
void in6_lookup_and_delete_multi(const struct in6_addr *,
const struct ifnet *);
struct in6_multi_mship *in6_joingroup(struct ifnet *, struct in6_addr *,
int *, int);
int in6_leavegroup(struct in6_multi_mship *);
int in6_mask2len(struct in6_addr *, u_char *);
int in6_control(struct socket *, u_long, void *, struct ifnet *);
int in6_update_ifa(struct ifnet *, struct in6_aliasreq *, int);
void in6_purgeaddr(struct ifaddr *);
void in6_purgeif(struct ifnet *);
void *in6_domifattach(struct ifnet *);
void in6_domifdetach(struct ifnet *, void *);
void in6_ifremlocal(struct ifaddr *);
void in6_ifaddlocal(struct ifaddr *);
struct in6_ifaddr *
in6ifa_ifpforlinklocal(const struct ifnet *, int);
struct in6_ifaddr *
in6ifa_ifpforlinklocal_psref(const struct ifnet *, int, struct psref *);
struct in6_ifaddr *
in6ifa_ifpwithaddr(const struct ifnet *, const struct in6_addr *);
struct in6_ifaddr *
in6ifa_ifpwithaddr_psref(const struct ifnet *, const struct in6_addr *,
struct psref *);
struct in6_ifaddr *in6ifa_ifwithaddr(const struct in6_addr *, uint32_t);
int in6_matchlen(struct in6_addr *, struct in6_addr *);
void in6_prefixlen2mask(struct in6_addr *, int);
void in6_purge_mcast_references(struct in6_multi *);
int ip6flow_fastforward(struct mbuf **); /* IPv6 fast forward routine */
int in6_src_ioctl(u_long, void *);
int in6_is_addr_deprecated(struct sockaddr_in6 *);
struct in6pcb;
#define LLTABLE6(ifp) (((struct in6_ifextra *)(ifp)->if_afdata[AF_INET6])->lltable)
void in6_sysctl_multicast_setup(struct sysctllog **);
#endif /* _KERNEL */
#endif /* !_NETINET6_IN6_VAR_H_ */
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